Answer: B: 1/5
Step-by-step explanation: To find the probability of a students favorite class being history, we add all of the students to a sum. When added correctly, you should have a sum of 60 students. The next thing we do is create a fraction of the amount of students that enjoy history. This makes our answer 12/60. While this is correct, it makes any other possible calculations a bit more difficult so we must simplify it. To simplify you simply divide the fraction until you can no longer divide it with common factors. So I divided 60 by 12 to get 5. Knowing that this is one number, we would put 1 as a numerator and 5 as the denominator. This means our answer is 1/5 or B.
!50 POINTS!
Which number is a solution of the inequality?
6 greater than z left-parenthesis 10 minus z right-parenthesis
A. 0
B. 1
C. 2
D. 3
I'm super confused on this question. Awarding Brainiest for Answer and Step By Step Explanation. Thanks!
Answer:
A. 0Step-by-step explanation:
Given inequality:
6 > z(10 - z)Solution:
6 > 10z - z²z² - 10z + 6 > 0z² - 10z + 25 > 19(z - 5)² > 19z - 5 > √19 ⇒ z > 5 + √19 ⇒ z > 9.35z - 5 < - √19 ⇒ z < 5 - √19 ⇒ z < 0.64The only number satisfying this inequality is 0.
Correct choice is A
Compute the range of the box and whisker plot. Type a numerical answer in the space provided. DO not type spaces in your answer.
Answer:
94
Step-by-step explanation:
The range of a dataset is the difference between the maximum and minimum value :
The staring point of the whisker is the minimum = 4
The end point of he whisker is the maximum = 96
The range of the box and whisker plot is Hence,
Minimum = 4
Maximum = 98
Range = 98 - 4
Range = 94
A plane travels 1200 miles from San Diego, Ca to Portland, Oregon. On the way there, the plane traveled with the wind and made it in 4 hours. On the return trip, the plane traveled against the wind and made it in 6 hours. Find the speed of the plane and the speed of the wind.
Answer:
Speed of plane is 250 miles per hour and speed of wind is 50 miles per hour
Step-by-step explanation:
Let x represent the speed of the wind. When travelling with the wind, the plane travels 1200 miles within 4 hours. Hence the speed of the plane with the wind is:
speed = distance / time = 1200 miles / 4 hours = 300 miles per hour
When travelling against the wind, the plane travels 1200 miles within 6 hours. Hence the speed of the plane against the wind is:
speed = distance / time = 1200 miles / 6 hours = 200 miles per hour
Therefore:
300 - x = 200 + x
300 - 200 = x + x
2x = 100
x = 50 miles per hour
The speed of the wind = 50 miles per hour. The speed of the plane = 300 - 50 = 200 + 50 = 250 miles per hour
elisha wants to attend the town carnival. the price of the admission to the carnival is $5.50, and each ride costs an additional 88 cents. if he can spend at most $26.00 at the carnival, which inequality can be used to solve for r the number of rides elisha can go on, and what is the maximum number of rides he can go on?
(1) 5.50 + 0.88r ≤ 26.00; 23 rides
(2) 0.88 + 5.50r ≤ 26.00; 23 rides
(3) 5.50 + 0.88r ≤ 26.00; 24 rides
(4) 0.88 + 5.50r ≤ 26.00; 24 rides
please explain
Answer:
5.50 + 0.88r ≤ 26.00; 24 rides
or 5.50 + 0.88r ≤ 26.00; 23 rides
Step-by-step explanation:
mrk me brainliest plz
i can't explain it i just look at a math problem and auotomatically know the answer
Answer:
(1) 5.50 + 0.88r ≤ 26.00; 23 rides
Step-by-step explanation:
First of all, please understand the equation itself. We are multiplying 0.88 by r, or the number of rides. First, lets determine how many rides Elisha can ride. 0.88 * 23 = 20.24. And 20.24 + 5.50 = 25.74. This is less than 26.00. Now, 0.88 * 24 = 21.12 + 5.50 = 26.7. Though not by much, this is more than 26.00, so, Elisha cannot ride more than 23 rides. That eliminates options (3) and (4). The difference between (1) and (2) is that in (1) we are multiplying 0.88 by r which is correct, however, option (2) is multiplying 5.50 by r which is incorrect. Thus we have our answer. However, please note one important thing. I want you to understand the reason for the "≤" sign as this is very different from <. The sign used here indicates "less than OR equal to" whereas the other is "less than." The sign used indicates that this is the MAX Elisha can spend but he could also spend less. This may seem simple but it is crucial to have a good understanding of this concept as you progress. Any further questions just comment! Hope this helps:) P.S. do not just take the answer! READ, PRACTICE, AND UNDERSTAND.
calculate the difference between the two times.
8: 15 am. or pm
3: 30 am or pm.
Answer:
5:15 pm is the answer for the question
What is the measure of
Angles are not necessarily drawn to scale,
A
B
С
73
x O
Answer:
17°
Step-by-step explanation:
m∠x=90-73=17° (∠AOC is right angle)
Which of the following statements is NOT true?
A. -4 divided by 7 is a negative number
B. -4/-7 = 4/7
C. -2 (-3+0.5) = (-2) (-3) + (-2) (0.5)
D. (-2) (1/3) (-4) is a negative number
helen rolls a dice and flips a coin
calculate the probability that she gets a 4 and a tail
the sum of two integers is less than -57. one integer is 23 what is the other integer?
Answer:
The other integer is less than -80
Step-by-step explanation:
The given sum of the two integers < -57
The value of one of the integers = 23
Let 'b' represent the value of the other integer, we are given;
b + 23 < -57
Therefore, we have;
b < -57 - 23 = -80
Therefore, the other integer, b < -80.
please help. i will brainlist you
Answer:
first question:
range-22
IQR-13
second question:
range-26
IQR-15.5
I hope this helped bestie!
Write story problem that uses addition and has a solution of 6 (x=6)
Answer:
Let me give you an example of a segment addition problem that uses three points that asks the student to solve for x but has a solution x = 20.
First, I assumed values for each x, y and z and then manipulated their coefficients to get the total at the end of each equation.
20 + 10 +30 = 60
40 + 0 + 40 = 80
40 + 10 = 50
Then exchangeing these numbers into values and we have the following equation.
x + 2y + 3z = 60
2x + 4z = 80
2x + z = 50
If you will solve them manually by substituting their variables into these equations, you can get
x = 20
y = 5
z = 10
Step-by-step explanation:
hi may you help me with 1+1
Answer:
2
Step-by-step explanation:
Which point has coordinates (-2, 3)?
Answer: I need a picture to go along with it because I see nothing.
Step-by-step explanation:
QUICKK The Johnson family went to a socially distance movie and paid $30 for two adults and two children the modern family went to the same movie and paid 35 for two adults and three children what was the price of an adult ticket
Answer: adults = $10
Step-by-step explanation:
x = adults
y = children
2x + 2y = 30
2x + 3y = 35
Using the elimination method:
2x + 2y = 30
-2x - 3y = -35 (multiplied by -1, to give 2x -2x = 0)
Solve for y...
2y = 30
-3y = -35
Add together...
-y = -5
Multiply by -1 to give positive value for y...
y = $5
Plug into one of the original equation to find x...
2x + 10 = 30
2x = 20
x = $10
−5x+13y=−7
5x+4y=24
Step-by-step explanation:
-5x + 13y = -75x + 4y = 24_________________
17y = 17y = 17 __ 17y = 1Alejandro compra un terreno de 0,3 hm cuadrados y 0,9 dam al cuadrados a50 euros el metro cuadrado ¿cuanto ha pagado por el terreno?
Answer:
13.5 euros
Step-by-step explanation:
A partir de la pregunta anterior, las dimensiones del terreno se dieron como 0.3 & 0.9 m
El terreno es de forma rectangular.
Paso 1
Encontramos el área de la tierra
Área = Largo × Ancho
Área = 0.3 m × 0.9 m
Superficie = 0.27m²
Paso 2
Nos dijeron
1 m² = 50 euros
0.27m² = x
Multiplicar cruzada
x = 0.27 × 50 euros
x = 13.5 euros
Alejandro ha pagado 13.5 euros por el terreno
Andrew has a round trampoline with a diameter of 4 yards. What is the circumference of the trampoline?
You would use this formula for the problem...
(C=2πr) The circumference equals 2 multiplied by pi and radius.
In this problem it says diameter, but the diameter is just twice the length of the radius, so just multiply the radius by 2. Plugin your number.
C=2π(2) since 2 is half of 4, that's your radius.
Your answer is roughly C= 12.57.
You're welcome.
Changing the order of numbers and what
2 operations changes the answer?
Answer:
If you change the order of the numbers when adding or multiplying, the result is the same. Use the commutative properties to rewrite the following expressions: Use the commutative property of addition to change the order. Use the commutative property of multiplication to change the order. Use the commutative properties to rewrite the following:
Step-by-step explanation:
What is the axis of symmetry and vertex?
y=-3x2-24x-42
Can someone help me pls
Answer:
okay can you tell me if the first -3x and second 24x are multiply or are just letters and I than I will post the answer
Please help will mark brainliest need help ASAP!!
Step-by-step explanation:
I=P*R*T/100
R= I*100/P*T
so rate= I*100/3000*0.5
= 30000/1500
= 300/15
=20%
pls gimme brainliest I need it
Answer:
R = 20%
Step-by-step explanation:
Given
I = PRT , substitute corresponding values
300 = 3000 R × 0.5
300 = 1500 R ( divide both sides by 1500 )
0.2 = R ( multiply value by 100% ) , that is
R = 0.2 × 100% = 20%
Write the equation of a line parallel to the line y = 4x - 3 and passing through the point (0,10).
Answer:
y=4x + 10
Step-by-step explanation:
Parallel lines always have the same slope. The point that you have is the y-intercept because the x is 0. So now you have both the slope and y- intercept and just need to sub it into the y=mx+b equation
The equation of line passes through the point (0, 10) will be;
⇒ y = 4x + 10
What is Equation of line?The equation of line in point-slope form passing through the points
(x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
Where, m = (y₂ - y₁) / (x₂ - x₁)
Given that;
The point on the line are (0, 10).
And, The parallel line is,
⇒ y = 4x - 3
Now,
Since, The equation of line passes through the point (0, 10).
So, We need to find the slope of the line.
Since, The slope of the parallel line is same.
Hence, Slope of the line is,
y = 4x - 3
m = dy/dx = 4
m = 4
Thus, The equation of line with slope 4 is,
⇒ y - 10 = 4 (x - 0)
⇒ y - 10 = 4x
⇒ y = 4x + 10
Therefore, The equation of line passes through the point (0, 10) will be;
⇒ y = 4x + 10
Learn more about the equation of line visit:
https://brainly.com/question/18831322
#SPJ2
2 and 1/2 divided by 3/8 as a fraction
Answer:
6 and 2/8 or reduced to 6 and 1/4
Step-by-step explanation:
!! Please help, due soon !! (No scam answers or links, ty.)
Is the following expression a monomial, binomial, or trinomial? 2a^2 - 5a + 7
Answer: Trinomial
Step-by-step explanation: This expression has 3 terms (2a^2, -5a, and 7), so it is a trinomial. An easy way to remember this is that 'tri' = 3, 'bi' = 2, and 'mono' = 1. Hope this helped :)
Find value of 'k' and solve for unknown variable
Answer:
k = 27/4
y = 283.5
Step-by-step explanation:
Let
y = amount of water used
x = number of dogs washed
y = kx
y = 81 gallons
x = 12 dogs
y = kx
81 = k * 12
81 = 12k
Divide both sides by 12
81/12 = 12k/12
k = 81/12
k = 27/4
k = 6.75
Find x when y = 42 dogs
y = kx
y = 27/4 * 42
y = (27*42) / 4
y = 1,134 / 4
y = 283.5
y = amount of water used = 283.5 gallons
Pls help I am stuck and it is due soon number 6
Answer:
1/4
Step-by-step explanation:
First, you add all the marbles together to make the total. 6 + 5 + 4 + 9 = 24.
Then, make 6 the numerator and 24 the denominator. [tex]\frac{6}{24}[/tex]
Next, simplify. [tex]\frac{6}{24}[/tex] = [tex]\frac{3}{12}[/tex] = [tex]\frac{1}{4}[/tex]
Lastly, have a wonderful day! :)
Answer:
THEN ANSWER I BELIVE IS A bc if mutiply them the marbles u mutiply AND YOULL GET 2 5/7
Step-by-step explanation:
I need helppppp :(((
Calculate the surface area of a 9' by 8' by 11' rectangular prism. Just enter the number, not the unit.
PLEASE HELP!
Answer:
518
Step-by-step explanation:
LxWxH
9*8*11
518
Which fraction is equivalent to - (7/8) ?
1. -(-7/8)
2. - ( 7/-8)
3. -7/8
4. -7/-8
Answer:
C: -7/8
Step-by-step explanation:
It makes the whole fraction negative just like the one you are comparing it to
£40 is divided between Jim, Krutika & Natasha so that Jim gets twice as much as Krutika, and Krutika gets three times as much as Natasha. How much does Jim get?
Answer:Jim gets £24
Step-by-step explanation:
Let the amount Natasha gets be represented as x
SO that Krutika getting three times as much as Natasha be represented as 3x
AND Jim getting twice as much as Krutika be represented as 2 x 3x=6x
The equation to show how much each gets can be represented as
x + 3x +6x=40
Solving
x +3x + 6x=40
10x =40
x =40/10 =4
Natasha gets £4
Krutika gets 3x =3x4= £12
Jim gets 6x=6 x4= £24
Evaluate the expression 2x^2 - x, when x = -3.
Answer:
21
Step-by-step explanation:
2(-3)^2-(-3)
2(9)+3
18+3= 21