The number of chicken and the rabbits in the farm are 8 and 16 respectively.
Given that Fred has 24 heads and 80 feet in his farm we need to find the number of chicken and the rabbits in the farm,
Let the number of chicken and the rabbits in the farm be c and r respectively.
Establishing the system of equations,
c + r = 24
c = 24 - r.........(i)
2c + 4r = 80
c + 2r = 40
c = 40 - 2r..........(ii)
Equating the equation, since their LHS are equal,
24 - r = 40 - 2r
r = 16
Put r = 16 in eq(i)
c = 40 - 32
c = 8
Hence, the number of chicken and the rabbits in the farm are 8 and 16 respectively.
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please help with this
Step-by-step explanation:
by using Pythagoras theorem you can find the answer
[tex] {a}^{2} + {b }^{2} = {c}^{2} \\ {9 }^{2} + {x}^{2} = {24 }^{2} \\ 81 + {x}^{2} = 576 \\ {x }^{2} = 576 - 81 \\ {x }^{2} = 495 \\ \sqrt{ {x}^{2} } = \sqrt{495 } \\ x = 22.2485954613[/tex]
Answer:
3√55
Step-by-step explanation:
Because this is a right triangle we can use Pythagorean theorem to find the missing side length. Pythagorean theorem states the a^2 + b^2 = c^2 where c is the hypotenuse and a and b are the other two sides. In this case 24 is the hypotenuse
x^2 + 9^2 = 24^2
x^2 + 81 = 576
Subtract 81 from both sides to isolate the x
x^2 = 495
Find the square root of both sides
√x^2 =√495
Now factor √495 to simplify
x = √3· 3 · 5 · 11
There is a pair of 3's so we move them to the outside of the radical
x = 3√5·11
x = 3√55
To negate a disjunction, negate each of the component statements and change or to
The negation of "p or q" is "not p and not q", which means that "p or q" is false if and only if both "p" and "q" are false.
To negate a disjunction, which is a statement of the form "p or q", we need to negate each of the component statements and change "or" to "and". The negation of "p or q" is "not p and not q", which means that "p or q" is false if and only if both "p" and "q" are false.
For example, if we have the statement "John will go to the beach or he will go to the park", we can negate it by saying "It is not the case that John will go to the beach or he will go to the park", which can be written symbolically as "not (John will go to the beach or he will go to the park)". Using the rule for negating a disjunction, we can rewrite this statement as "John will not go to the beach and he will not go to the park".
Note that this is different from the negation of a conjunction, which is a statement of the form "p and q". The negation of "p and q" is "not p or not q", which means that "p and q" is false if either "p" or "q" is false.
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In Exercises 2 and 3, describe the shape of the distribution of the data. Explain your reasoning.
The distribution of the data are symmetrical and left skewed, respectively
Describing the shape of the distribution of the dataStem and leaf plot 2
Here, we can see that the data increases uniformly till it gets to a peak, and then start decreasing till it gets to the initial level
This means that the plot is symmetrical
Hence, the distribution of the data is symmetrical
Stem and leaf plot 3
Here, we can see that the data has more points at the bottom that the upper part
This means that the plot is left skewed
Hence, the distribution of the data is left skewed
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Solve by taking the square root of both sides. (3x+3)^2 =25
The answer is 3x+3 = ±5 when the square roots of both sides of the equation (3x+3)² = 25 are taken. Both x = 2/3 and x = -8/3 are possible answers to the "x" equation.
The squared term on one side of the equation must first be isolated in order to solve (3x+3)²= 25 by calculating the square roots of both sides we get:
(3x+3)²= 25
The result of taking the square root of both sides will:
3x+3 = ±5
Two potential equations result from simplifying the right side:
3x+3 = 5 or 3x+3 = -5
The right side can be simplified into one of two equations:
3x = 2
x = 2/3
Solving for x in the second equation, we get:
3x = -8
x = -8/3
Therefore, the answer to the equation (3x+3)² = 25 are x = 2/3 and x = -8/3.
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A population has a standard deviation of 50. A random sample of 100 items from this population is selected. The sample mean is determined to be 600. At 95% confidence, the margin of error is: A. 650 B. 9.8 C. 609.8 D. 5 E. None of the above
The margin of error is 9.8. The answer is (B).
Margin of error (ME) is the amount of random sampling error that is expected in a survey's results. It is the range of values above and below the sample statistic (such as the sample mean or proportion) within which the true population parameter (such as the population mean or proportion) is expected to lie with a certain degree of confidence.
The margin of error (ME) for a 95% confidence interval is given by:
ME = z*(σ/√n)
where z is the z-score for the desired level of confidence (in this case, 95%), σ is the population standard deviation, and n is the sample size.
We are given that σ = 50, n = 100, and the sample mean is 600. To find the z-score, we can use a standard normal distribution table or calculator. For a 95% confidence interval, the z-score is approximately 1.96.
Substituting the values into the formula, we get:
ME = 1.96*(50/√100) = 9.8
Therefore, the margin of error is 9.8. The answer is (B).
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In the box below, type in all of the names possible for this shape. Some words may not be used.Why did you give the shape the names that you did? Explain using sides and angles.
The names possible for the shape are
Quadrilateral - this means a four sided figure
Parallelogram - Opposite sides are parallel to each other
Rhombus - The vertex angles are not all equal to each other
What is a quadrilateral?A polygon with four sides and angles is known as a quadrilateral. This two-dimensional plane shape features straight borders that connect at its four vertices, also referred to as corners.
A rhombus is a parallelogram because the opposites sides are parallel to each other
Geometrically speaking, a rhombus denotes a specific kind of quadrilateral encompassing four equal-lengthed border lines.
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Use technology to find points and then graph the function y=(1/2)^x-4, following the instructions below
Because the equation of the asymptote is given as y = -4, the points on the function y = (1/2)ˣ -4 are:
Vertical Aymptote : x = 0
y-intercept: (0,3)
x-intercept: (-2.32, 0). See the attached graph.
How is the above derived ?
As x approaches zero and the base of the exponent in y = ((1/2)ˣ - 4 becomes increasingly small, the function value approaches infinity from the right side while simultaneously approaching zero from the left side.
This phenomenon is known as a vertical asymptote at x=0.
Note that the in the function:
y = (1/2)ˣ -4 , where x = 0
y = y(1/2)^0 - 4
y = 1 - 3
y = -3
Hence the y intercept is -3
To dertive the x-intercept,
we set y to zero.
0 = (1/2)^x -4
(1/2)^x = 4
Using Log we can solve x to be = -2.32
Thus, it is correct to state that the points are:
Vertical Asymptote : x = 0
y-intercept: (0,3)
x-intercept: (-2.32, 0).
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What is the surface area of the pyramid
(A) 38 cm2
(B) 76 cm2
(C) 100 cm2
(D) 152 cm2
The surface area of the given pyramid is 76 cm². Option B is correct.
We can start by finding the area of each triangular face of the pyramid. The area of a triangle can be calculated using the formula:
Area = 0.5 * base * height
where the base is the length of one side of the triangle (which is equal to the base length of the pyramid in this case), and the height is the slant height of the triangle (which is given as 5 for one face and 5.5 for the other face).
Area of the first triangular face = 0.5 * 6 * 5 = 15
Area of the second triangular face = 0.5 * 4 * 5.5 = 11
To find the surface area of the pyramid, we need to add the area of the base to the sum of the areas of the triangular faces. The area of the base is simply the area of a rectangle, which can be calculated using the formula:
Area = length * width
where length and width are the dimensions of the base of the pyramid.
Area of the base = 6 * 4 = 24
Therefore, the total surface area of the pyramid is:
Total surface area = Area of base + Sum of areas of triangular faces
Total surface area = 24 + 2*15 + 2*11
Total surface area = 76 cm²
Hence, the surface area of the given pyramid is 76 cm².
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I need help what’s the answer
The complex number can be represented as matrix as follow:
[tex]\left[\begin{array}{cc}2&-3\\3&2\end{array}\right][/tex] [tex]\left[\begin{array}{cc}1&-4\\4&1\end{array}\right][/tex] and the correct answer from the option is (B)
How to solve the matrix of complex numbersA complex number can be represented as a 2x2 matrix in the form:
[tex]\left[\begin{array}{cc}2&-3\\3&2\end{array}\right][/tex]
Addition and subtraction of complex numbers can be done by adding or subtracting the corresponding matrices.
Multiplication of two complex numbers can be done by multiplying the corresponding matrices and simplifying the result.
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The surface area of a cylinder is 378π square centimeters. The radius is 7 cm. Apply the formula SA=2B+Ph to find the height of the cylinder
We have the formula for the surface area of a cylinder:
SA = 2πrh + 2πr^2
Given that the surface area is 378π cm^2 and the radius is 7 cm, we can plug in these values and solve for the height:
378π = 2π(7)(h) + 2π(7)^2
378π = 14πh + 98π
280π = 14πh
h = 20 cm
Therefore, the height of the cylinder is 20 cm.
Help really confused
(Chapter 12) If u and v are in V3, then |u * v| ⤠|u||v|
It is about the relationship between the magnitude of the cross product of two vectors and the product of their magnitudes. If u and v are in V3, then |u * v| ≤ |u||v|
Let's use the terms u, v, V3, and |u * v| in the answer.
In V3 (a 3-dimensional vector space), let u and v be two vectors. The magnitude of the cross product of u and v can be represented as |u * v|. According to the properties of the cross product, we have:
|u * v| ≤ |u||v|
This inequality means that the magnitude of the cross product of two vectors (|u * v|) is always less than or equal to the product of the magnitudes of the individual vectors (|u||v|). This result is known as the Cauchy-Schwarz inequality, which applies to vectors in any dimension, including V3.
In summary, if u and v are in V3, then |u * v| ≤ |u||v|.
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The table below shows the number of jumping jacks completed after a given period of time in minutes.
Common difference between jumping jacks is 50
The slope of line that connects 3 rd and 4th point is 50
The slope is constant.
The common difference between jumping jacks is 50
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
m=100-500/2-1=50
The slope of line that connects 3 rd and 4th point
Slope = 200-150/4-3=50
The slope of line that connects 1 st and 4th point
slope = 200-50/4-1
=150/3=50
The slope is constant
jumping jacks completed after a given period of time in minutes is linear so it is constant
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George performs an experiment where he flips a coin 2 times. If he performs this experiment 100 times, what is the best prediction for the number of repetitions of the experiment that will result in both the two filps landing on heads?
Answer:
The probability of getting heads on a single coin flip is 1/2. The probability of getting heads on two coin flips in a row is (1/2) * (1/2) = 1/4. Therefore, if George performs this experiment 100 times, we can expect that he will get both flips landing on heads about 25 times
Step-by-step explanation:
One serving of Takis weighs 1.4 ounces how many servings are in 20.3 ounces of Takis
Answer:
15
Step-by-step explanation:
1.4 x 15 equals 21 so if you round the question it equals 15 if not then 14.
Another model for a growth function for a limited population is given by the Gompertz function, which is a solution of the differential equation dP/dt = c ln(K/P) P where c is a constant and K is the carrying capacity.
The rate of population growth is proportional to the logarithm of the ratio of the carrying capacity to the current population.
The Gompertz function is a solution of the differential equation:
dP/dt = c ln(K/P) P
where P(t) is the population at time t, c is a constant, and K is the carrying capacity, i.e., the maximum population that can be sustained by the available resources.
To solve this differential equation, we can use separation of variables:
dP/P ln(K/P) = c dt
Integrating both sides, we get:
∫ dP/P ln(K/P) = ∫ c dt
Integrating the left-hand side requires a substitution. Let u = ln(K/P), then du/dP = -1/P and the integral becomes:
-∫ du/u = -ln|u| = -ln|ln(K/P)|
The right-hand side is just:
c t + C
where C is an arbitrary constant of integration.
Putting these together, we get:
-ln|ln(K/P)| = ct + C
Taking the exponential of both sides, we get:
|ln(K/P)| = e^(-ct-C)
Using the absolute value is unnecessary, since ln(K/P) is always positive, so we can drop the absolute value and write:
ln(K/P) = e^(-ct-C)
Solving for P, we get:
P = K e^(-e^(-ct-C))
This is the Gompertz function, which gives the population as a function of time, under the assumption that the rate of population growth is proportional to the logarithm of the ratio of the carrying capacity to the current population.
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A) In how many ways can 7 men and 7 women can sit around a table so that men and women alternate. Assume that all rotations of a configuration are identical hence counted as just one.
B) In how many ways can 8 distinguishable rooks be placed on a 8 x 8 chessboard so that none can capture any other, namely no row and no column contains more than one rook?
To arrange the 7 men and 7 women alternately around a table, we can first place the men in a circular manner. Since there are 7 men, there will be 6! ways to arrange them (considering that rotations are identical). Next, we can place the women in the 7 available spaces between the men.
A) In how many ways can 7 men and 7 women sit around a table so that men and women alternate? Assume that all rotations of a configuration are identical and hence counted as just one.
First, we can choose the position of the men around the table in 7! ways. Then, we can place the women in the remaining positions in 7! ways as well. However, we need to account for the fact that men and women must alternate. We can do this by fixing the position of one gender (say, men) and arranging the other gender (women) in the spaces in between. We have 7 spaces in between the men, so we can arrange the women in these spaces in 7! ways. However, we must also account for the fact that we could have started with women and arranged men in the spaces in between. Therefore, the total number of ways to arrange 7 men and 7 women around a table so that men and women alternate is:
2 * 7! * 7! * 7! = 20,160,000
B) In how many ways can 8 distinguishable rooks be placed on a 8 x 8 chessboard so that none can capture any other, namely no row and no column contains more than one rook?
First, we can place the first rook in any of the 64 squares on the board. Then, we must place the second rook in a square that is not in the same row or column as the first rook. There are 14 squares in the same row or column as the first rook, so there are 50 squares remaining for the second rook to be placed in. We continue in this manner, placing each subsequent rook in a square that is not in the same row or column as any of the previously placed rooks. Therefore, the total number of ways to place 8 distinguishable rooks on an 8 x 8 chessboard so that none can capture any other is:
64 * 50 * 36 * 25 * 20 * 15 * 10 * 5 = 3,416,748,800
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Solve the equation
r/2-6=14
I'm giving brainliest answer to the first answer!
I NEED HELP ON THIS ASAP!!!!
Answer:
Step-by-step explanation:
2 would have a greater b value because its x. Also the other answer is 2.
determine the equation of the parabola that opens up, has focus (5,4), and a focal diameter of 24
Answer:
Step-by-step explanation:
This season, the probability that the Yankees will win a game is 0.55 and the
probability that the Yankees will score 5 or more runs in a game is 0.56. The
probability that the Yankees lose and score fewer than 5 runs is 0.34. What is the
probability that the Yankees would score fewer than 5 runs when they lose the game?
Round your answer to the nearest thousandth.
The probability that the Yankees would score fewer than 5 runs when they lose the game is 0.45.
Let A be the event that the Yankees win a game, B be the event that they score 5 or more runs, and C be the event that they lose and score fewer than 5 runs.
Using the total probability rule, we can find the probability of losing and scoring fewer than 5 runs:
P(C) = P(Lose and Score fewer than 5 runs) = P(Lose and not Score 5 or more runs) = P(not A and not B) = 1 - P(A) - P(B) + P(A and B)
P(C) = 1 - 0.55 - 0.56 + P(A and B)
To find P(A and B), we can use the fact that P(A and B) = P(B|A) * P(A), where P(B|A) is the conditional probability of scoring 5 or more runs given that they win.
We are not given this conditional probability directly, but we can find it using Bayes' theorem:
P(B|A) = P(A and B) / P(A) = (0.55 * 0.56) / 0.55 = 0.56
Substituting this value into the equation for P(C), we get:
P(C) = 1 - 0.55 - 0.56 + 0.56
P(C) = 0.45
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HELP ON MATH!ITS FOR A GRADE
Answer: about 25 km2 to 35 km2
Step-by-step explanation:
hope this helps ;)
Answer: About 40 to 50 km^2
Step-by-step explanation:
So basically area is length x width so you want to count the squares for the length then multiply by the number of squares for the width which is 8 x 5 which equals 40
Ash can dig 5 holes in 2 hours, and Bruce can dig 9 holes in 5 hours. How many holes can they dig in 15 hours if they work together?
If Ash can dig 5 holes in 2 hours, and Bruce can dig 9 holes in 5 hours. The number of holes they can dig is: 64.5 holes .
How to find the number of holes?Ash rate:
5 holes / 2 hours
= 2.5 holes per hour
Bruce rate
9 holes / 5 hours
= 1.8 holes per hour
Number of holes they can dig together in one hour
2.5 holes per hour + 1.8 holes per hour
= 4.3 holes per hour
Now let find the number of holes they can dig in 15 hours,
4.3 holes per hour x 15 hours
= 64.5 holes
Therefore, Ash and Bruce can dig 64.5 holes.
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A student made two patterns to show multiplication of a decimal by powers of ten. The equations shown for both patterns are incorrect.
Pattern A
3.675 • 10 = 3.6750
3.675 • 100 = 3.67500
3.675 • 1,000 = 3.675000
Pattern B
3.675 • 0.1 = 3.0675
3.675 • 0.01 = 3.00675
3.675 • 0.001 = 3.000675
Explain why the equations in each of the patterns are false. Include in your explanation the values that should appear on the right side of each equation in both patterns to make the equations true.
Enter your explanation in the box provided.
How to get full credit:
Reasoning component: 2 points
Correctly explains why Pattern A is incorrect
Correctly explains why Pattern B is incorrect
Computation component: 2 points
Correct values for Pattern A
Correct values for Pattern B
The multiplication of decimals are wrong in he solution
How to multiply correctlyThe equations are false because the student is carrying out the wrong multiplication of decimal points
The correct multiplication should be:
Pattern A
3.675 • 10 = 36.75
3.675 • 100 = 367.5
3.675 • 1,000 = 3,675
Pattern B
3.675 • 0.1 = 0.3675
3.675 • 0.01 = 0.03675
3.675 • 0.001 = 0.003675
Hence the student has to solve this correctly because the previous values are wrong
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1. Line a: y = −4x + 7
Line b: x = 4y + 2
Line c: -4y + x = 3
Non of the lines is perpendicular rather they are parallel to each other
What is a perpendicular line?Perpendicular lines are straight lines that make an angle of 90° with each other
But Parallel lines are coplanar lines on a plane that do not intersect and are always the same distance apart. In two dimensions, parallel lines have the same slope and can be written as an equation if we know a point on the line and an equation of the given line.
The given equations are
1. Line a: y = −4x + 7
Line b: x = 4y + 2
Line c: -4y + x = 3
Solving each of them
line 1: y = −4x + 7
making y the subject
y = −4x + 7
Line 2: x = 4y + 2
making y the subject
4y = x -2
y = (x-2)/4
line 3: -4y + x = 3
making y the subject of the relation
-4y = -x + 3
y =( x - 3)/4
From the answers the lines are not perpendicular as their values are not the same
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evaluate the numerical expression the quantity 3 to the power of five sixths end quantity over the quantity 3 to the power of one sixth end quantity. cube root of 6 cube root of 9 square root of 9 square root of 27
The cube root of a number is a special value that when cubed gives the original number.
We can simplify the given expression as follows:
(3^(5/6)) / (3^(1/6)) = 3^((5/6) - (1/6)) = 3^(4/6) = 3^(2/3)
Next, we can simplify the expression cube root of 6 * cube root of 9 as follows:
cube root of 6 * cube root of 9 = cube root of (6 * 9) = cube root of 54
We can simplify the expression square root of 9 * square root of 27 as follows:
square root of 9 * square root of 27 = square root of (9 * 27) = square root of 243
Since 243 can be factored as 3^5, we have:
square root of 243 = square root of (3^5) = 3^(5/2)
Therefore, the final expression becomes:
(3^(2/3)) / cube root of 54 * 3^(5/2)
We can simplify the denominator as:
cube root of 54 * 3^(5/2) = cube root of (54 * 3^3) = cube root of (2^3 * 3^6) = 6 * 3^2 = 54
Thus, the final expression simplifies to:
(3^(2/3)) / 54
which cannot be further simplified.
Therefore, the final answer is:
(3^(2/3)) / 54
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the equation of a line is y + 4 =6x + 13. what is the value of y at the point where the line crosses the y-xais?
Answer:
y = 9
Step-by-step explanation:
When a line crosses the y-axis, it crosses at point (0,y).
Substitute x = 0 in to the line equation we get:
y + 4 = 0 + 13
So y = 13 - 4 = 9
The line crosses the y-axis at point (0,9)
write as a single fraction 1/1_x+2/1+x
To combine two divisions, we got to have a common denominator. In this case, ready to utilize the distributive property to induce a common denominator of (1+x) for both divisions:
1/(1x) + 2/(1+x) = 1/(1x*(1+x)) + 2x/(x(1+x))
Directly able to combine the two divisions by counting their numerators and composing them over the common denominator:
1/(1x(1+x)) + 2x/(x(1+x)) = (1+2x)/(x(1+x))
In this way, the given expression as a single division is:
(1+2x)/(x(1+x))
Writing 1/(1 + x) + 2/(1 + x) as a single fraction , we get 3/(1 + x)
Writing the expression as a single fractionFrom the question, we have the following parameters that can be used in our computation:
1/1_x+2/1+x
Express the fractions properly
So, we have
1/(1 + x) + 2/(1 + x)
Take the LCM of the fractions
So, we have
(1 + 2)/(1 + x)
Evaluate the sum of like terms
3/(1 + x)
Hence, the solution is 3/(1 + x)
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can anyone please help? urgenttt
The values of the angles and sides of the given right angle triangle are:
1) sin Q = 9/13
2) AB = 10
How to use trigonometric ratios?The common three trigonometric ratios in a right angle triangle are:
sin x = opposite/hypotenuse
cos x = adjacent/hypotenuse
tan x = opposite/adjacent
1) To find sin Q from the triangle, we have:
sin Q = pPR/PQ
sin Q = 9/15
2) Using Pythagoras theorem, we can find side AB as:
AB = √(6² + 8²)
AB = √100
AB = 10
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Members of a baseball team raised 967.50 to go to a tournament they rented a bus for 450.00 and budgeted 28.75 per player for meals they will spend all the money they raised
The equation is 967.50 = 450 + 28.75p which models the situation. The team could bring 18 players to the tournament.
Setting up an equation based on the given information.
Let p be the number of players on the team.
Then the total amount of money spent on meals will be 28.75p.
The total amount of money spent on the bus and meals will be 450 + 28.75p.
Since they spent all the money they raised, the equation models the situation as follows:
967.50 = 450 + 28.75p
To solve for p, subtract 450 from both sides:
517.50 = 28.75p
Then divide both sides by 28.75:
p = 18
Therefore, the team could bring 18 players to the tournament.
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The complete question is as follows:
Members of a baseball team raise $967.50 to go to a tournament. They rented a bus for $450.00 and budgeted $28.75 per player for meals. They will spend all the money they raised.
Write and solve an equation that models the situation and could be used to determine the number of players, p, the team could bring to the tournament.