Answer:
the second one!
Step-by-step explanation:
Bill has $590 in his account. He earned $15 per hour for x hours, and deposited his earnings into
his account. Jeremy has $545 in his account. He earned $20 per hour for x hours, and deposited
his earnings into his account. They both worked the same number of hours and now have the same
amount of money in their accounts. Which of the following equations could be used to determine
the amount hours they worked?
A 15x + 590 = 20x + 545
B 20x + 590 = 15x + 545
C 15x + 590 + 20x + 545
D 590 – 15x = 545 – 20x
What is the equation of the line, in slope-intercept form, that passes through (3, -1) and (-1, 5)?
2 x + 3 y - 7 = 0
2 y = -3 x + 7
Answer:
Here is the answer i hope this helps!?Step-by-step explanation:
(7/5 , 7/5)
Equation Form: x = 7/5, y = 7/5Answer:
2y = -3x + 7
Step-by-step explanation:
(3, -1) and (-1, 5)
Slope:
m=(y2-y1)/(x2-x1)
m=(5+1)/(-1-3)
m=6/(-4)
m= -3/2
Slope-intercept:
y - y1 = m(x - x1)
y + 1 = -3/2(x - 3)
y + 1 = -3/2x + 9/2
y = -3/2x + 7/2
Standard form:
y = -3/2x + 7/2
3x + 2y = 7
2y = -3x + 7
I really don't like algebra, help meh with this plz if ur good at it...
9514 1404 393
Answer:
(x, y) = (-1, -3)
Step-by-step explanation:
You notice that the coefficient of x in the first equation is double the opposite of the coefficient of x in the second equation. This means we can make the x-term disappear by adding twice the second equation to the first.
(-6x +8y) +2(3x) = (-18) +2(y)
8y = -18 +2y . . . simplify
6y = -18 . . . . . . . subtract 2y
y = -3 . . . . . . . . . divide by 6
Substituting into the second equation, we have ...
3x = -3
x = -1 . . . . . . . . . divide by 3
The solution is (x, y) = (-1, -3).
HELPPP!
Line segment DE is a midsegment of АВС. Find the value of x.
Step-by-step explanation:
The midsegment is half of the side side AC.
Half of 38=18
DE=19
what is VIII as a number
Answer:
8
Step-by-step explanation:
If you want you can give me brainlest
PLEASE HELP ME. I WILL MARK YOU AS BRAINLINEST
Here are Xavier's bowling scores:
135, 140, 130, 190, 112, 200, 185, 172, 163, 151, 149
what is the standard deviation rounded to the nearest tenth?
Answer:
26.3
Step-by-step explanation:
the first guy was close, for those of you who struggle with acellus im here to help haha
Can someone help me solve this please?
Answer:
54.6 units
Step-by-step explanation:
Tangents from an external point to a circle are congruent, then
top tangent = 9.2 × 2 = 18.4
Thus
perimeter = 18.4 + 18.5 + 17.7 = 54.6 units
In a certain linear pair, one angle measures 3 more than twice the measure of the other. Find the measure of each angle.
Answer:
6 x 4 = 98ft
/9= 76 take the common factor and hears your answer 9 x 6
Step-by-step explanation:
A bag of marbles contains 3 yellow marbles, 4 blue marbles, akd 8 orange marbles. Which of the following is true of
selecting a green marble? Select all that apply.
Answer:
B. This event will not happen.
C. The probability is 0.
Step-by-step explanation:
Only B and C can be answers because there are no green marbles so how can you select a green marble when there aren't any. The probility is 0 which means never going to happen.
Solve using elimination.
-4x + 7y = -1
6x - 7y = 5
Answer:
(4,-1)
Step-by-step explanation:
x is 4 y is -1
Answer:
(2,1)
Step-by-step explanation:
Let's solve your system by elimination.
6x−7y = 5;−4x+7y=−1
6x−7y=5
−4x+7y=−1
Add these equations to eliminate y:
2x = 4
Then solve2x = 4for x:
2x = 4
(Divide both sides by 2)
x = 2
Now let's plug x in to solve for y.
6x - 7y = 5
6(2) - 7y = 5
12 - 7y = 5
subtract 12 on both sides.
-7y = -7
divide both sides by -1
y = 1
a 5-foot piece of linen costs $18.00. what is the price per inch?
Answer:
$3.00 per inch
Step-by-step explanation:
also hope this helps
Lilly wants to determine the association between her deposits and her savings account balance. She modeled the equation y = 75x + 100
for the line of best fit. The independent variable, x, is deposits and the dependent variable, y, is account balance. What does the y
intercept mean in this context?
A)
The starting savings account balance is $75.
B)
The starting savings account balance is $100.
The account balance increases by an additional $75 for
each deposit.
D)
The account balance increases by an additional $100 for
each deposit.
Answer:
D) The account balance increases by an additional $100 for each deposit
Step-by-step explanation:
The y intercept will always be the number being added or subtracted from the independent variable.
The y intercept of y = 75x + 100 is 100, it means that the starting savings account balance is $100.
What is a linear equation?A linear equation is in the form:
y = mx + b
Where m is the rate of change and b is the y intercept.
Given the equation:
y = 75x + 100
The y intercept is 100, it means that the starting savings account balance is $100.
Find out more on linear equation at: https://brainly.com/question/14323743
The highest elevation in Delaware is 106 feet higher than the highest elevation in Florida. Louisiana's highest elevation is 190 feet higher than Florida's highest elevation. If you climbed from sea level to the highest points in Delaware, Florida, and Louisiana, you would only climb 1331 feet. How high is the highest elevation in each of the three states?
Answer:
Florida = 345 feets
Delaware = 451 feets
Louisiana = 535 feets
Step-by-step explanation:
Given that:
Let :
Highest elevation in Florida, = x
Highest elevation in Delaware = x + 106
Highest elevation in Louisiana = x + 190
Sum of highest elevation in the 3 states = 1331 feets
Hence,
x + x + 106 + x + 190 = 1331
3x + 296 = 1331
3x = 1331 - 296
3x = 1035 feets
x = 1035 / 3
x = 345 feets
Hence,
Highest elevation in Florida, = x = 345
Highest elevation in Delaware = 345 + 106 = 451
Highest elevation in Louisiana = 345 + 190 = 535
ANSWER CHOICES LISTED
what transformation to the linear parent function f(x)=x gives the function g(x)= -4x? select ALL that apply
a. Horizontally stretch by a factor of 4
b. Shift 4 units down
c. Vertically stretch by a factor of 4
d. Reflect over the x-axis
Answer:
c, d.
Step-by-step explanation:
c; A vertical stretch by 4 will put the coefficient (in this case 4) in front of your original equation.
d; the negative in front of the whole equation (-4x) will flip the graph across the x-axis.
A new solid is crest be cutting a right rectangular prism from a cube. The right rectangular prism has a length of 5 m, a width of 4 m, and a height of 2 m. The side lengths of the cube are 5 m. What is the volume of the solid?
The distance y in miles traveled by a car is 20 times the number of gallons x of gasoline used by the car. Write and graph a function that describes the relationship between x and y
Answer:
y=20x
Step-by-step explanation:
7th grade math
HELP ME whovever is good at this!
Find the volume of this prism. Its a triangular prism
Answer:
120 cm cubed
Step-by-step explanation:
first we need to find the size of the triangular face. we can do this by taking the height and with of the base, multiplying them, then dividing by two (3*8)/2
which gives us 12, so now we multiply by 10 to get the volume of the full prism. 12*10=120
Sam ate of a candy bar and Jordyn ate of
a candy bar. How much of the candy did
they both eat?
2 also ima partay saturday
a metal box that is in shape of cuboid has the following dimensions. the length is 9 inches, width is 2 inches and height is 1. 5 inches. find the total cost of silver coating the entire box if the cost of coating is $2.50 per Sq. inches
Given:
Length of a box is 9 inches, width is 2 inches and height is 1.5 inches.
The cost of silver coating is $2.50 per sq. inches.
To find:
The total cost of silver coating for the box.
Solution:
The total surface area of a cuboid is
[tex]A=2(lb+bh+hl)[/tex]
Where, l is length, b is breadth and h is height.
Putting [tex]l=9,b=2,h=1.5[/tex], we get
[tex]A=2(9\times 2+2\times 1.5+1.5\times 9)[/tex]
[tex]A=2(18+3+13.5)[/tex]
[tex]A=2(34.5)[/tex]
[tex]A=69[/tex]
So, the total surface area of the box is 69 square inches.
Cost of silver coating is $2.50 per sq. inches. So, the cost of silver coating for the box is
[tex]Cost=69\times 2.50[/tex]
[tex]Cost=172.50[/tex]
Therefore, the cost of silver coating for the box is $172.50.
I need help on this math questions please.
Answer:
(a)
perimeter = 2 + 8 + 4 + 7x + 4x
(b)
perimeter = 11x + 14
Find the length of side AG
Give your answer to 1 decimal place
Answer:
AC = 17.3
Step-by-step explanation:
AC = √c2 - b2
= √18.6862701378782 - 72
= √300.17669166575
= 17.32561
= 17.3
Kristin's Bikes rents bikes for $11 plus $2 per hour. Willie paid $23 to rent a bike. For how many hours did he rent the bike?
Define the variable, write an equation, and solve the equation.
Answer:
6
Step-by-step explanation:
Let x = number of hours.
Let y = cost.
The fixed cost is $11.
The cost per hour is $2.
For x hours, the cost per hour is 2x.
y = 2x + 11
23 = 2x + 11
12 = 2x
x = 6
Answer: 6
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Answer:
240 feet
Step-by-step explanation:
i multiplied 6
inches and 40 feet.
You bike 4 miles the first day of your training, 4.3 miles the second day, 4,9 miles the third day, and 6.1 miles the fourth day. If
you continue this pattern, how many miles do you bike the seventh day?
Answer:
+3 , +6 , + 12
x2
Step-by-step explanation:
4
4.3
4.9
6.1
Which expression is equivalent to 1/3(12x+6x-21)
Answer:
[tex]6x-7[/tex]
Step-by-step explanation:
[tex]\frac{1}{3} (12x + 6x -21)[/tex]
break it into pieces
[tex]\frac{1}{3}*12x = 4x[/tex]
[tex]\frac{1}{3}*6x=2x[/tex]
[tex]\frac{1}{3} *-21=-7[/tex]
put it all together
*since there's no negative in front of the other numbers except 7 they're positive so you add them*
[tex]4x + 2x - 7[/tex]
simplify
[tex]6x - 7[/tex]
A robotics company sells robot vacuum cleaners. Since the newest model was introduced a while back, the old model has seen its sales fall by a consistent 20% per month. If 5,100 old vacuum cleaners were sold this month, how many will be sold 3 months from now? WILL GIVE BRAINLIEST!!
What is the surface area of the following
Answer Choices:
80 square cm
64 square cm
112 square cm
72 square cm
Step-by-step explanation:
2(6)(4)+(4)(4)
48+16
64 square Centimeters
Explain how we know that the sine of 270 degrees is -1. State one other value of θ such that sinθ=1.
Solution :
Trigonometry is that branch of mathematics which is used to study the relationship between the angles and the lengths of the sides of a triangle.
We known that the co-ordinate of a point on the circumference of a circle making an angle θ with the horizontal having a unit radius is given by :
(1 cos θ, 1 sin θ).
And for any angle made by sin θ on the x - axis is 0 and on the y -axis is 1 or -1 depending on the quadrant.
Since, angle 270 degree falls on the 3rd quadrant, therefore, the value of the co-ordinates of the point is (cos θ, sin θ) = (0,-1).
So the value of sin 270° = -1.
One other example of sin θ = 1 is 90° as 90 degree falls in the first quadrant.
I need awnsers people
Answer:
a) x <= 15 b) x > 16.5 c) x < 34.5 d) x =/= 23
Step-by-step explanation:
For a), there is a shaded region for where 15 is, and the number line is going towards the left, so x will be less than but also equal to 15
For b), there is not a shaded region for where 16.5 is, but the number line is going towards the right, so x will be greater than 16.5
For c), there is not a shaded region for where 34.5 is, but the number line is going towards the left, so x will be less than 34.5
For d), there is not a shaded region for where 23 is, but the number line is going everywhere else so it is x =/= 23(x does not equal to 23)
what can be added to 2 to give us -6
Answer:
-8 can be added to 2 to give us -6
Step-by-step explanation:
hopefully this helps :)