A person's score on a Mad Minute is proportional to the amount of questions he or she answers correctly. Each Mad Minute lasts the same amount of time. On her first test, Rachel earned a score of 70 when she answered 25 questions correctly. Rachel says this relationship can be modeled with an equation.

Answers

Answer 1

Answer:

s = 2.8y

Step-by-step explanation:

Score is proportional to the amount of correctly answered question :

Given that:

Score earned by Rachael = s =70

Number of correctly answered question = y = 25

Hence,

Score α number of correctly answered question

s = ky

70 = 25k

k = 70/25

k = 2.8

Hence, one correct answer gives 2.8

Hence,

Score obtained = 2.8 * number of questions answered correctly

s = 2.8y


Related Questions

5-4x-8y How many TERMS are present in this expression? 2. How many TERMS are present in this expression? List them: List them: Identify the terms, variables, coefficients, and constants in each expression.

Answers

Answer:

2 terms the terms are x and y

Answer:

Cry Shape Hearty

Step-by-step explanation:

Cry Shape Hearty

A survey was done to see if residents drive a car or ride the bus. Let C represent residents who drive a car and
B represent ride the bus. Which of the following represents residents who drive a car and do not ride the bus?
A. C⋃B
B.C⋂B
C.C⋂B
D.C⋃B

Answers

Answer:

     

Step-by-step explanation:

 

Answer:

d

Step-by-step explanation:

PLEASE HELP!!!
A. the function shown on the graph has a greater rate of change, but a lower starting point.
B. the function shown on the graph has a greater rate of change in a higher starting point.
C. the function shown on the graph has a smaller rate of change in a lower starting point.
D. the function shown on the graph has a smaller rated change, but a higher starting point. ​

Answers

Answer:

It's A

Step-by-step explanation:


One glass of lemonade uses cup of lemonade mix.
How many glasses of lemonade can Stephanie make with 3 cups of lemonade mix?

Answers

Answer:

3 glasses

Step-by-step explanation:

1 glass= 1 cup

3 cups= 3 glasses

Answer:

Step-by-step explanation:3 glasses

What is the solution to this rational equation? 24-x-8=4 A. x = -2 B. x = 2 C. x = 4 D. x = 14

Answers

Answer:x=14

Step-by-step explanation:

for plato users

The solution of the rational equation 24/(x-8) = 4 is x = 14.

What is an equation?

Two algebraic expressions having same value and symbol '=' in between are called as an equation.

Given:

A rational equation,

24/(x-8) = 4.

Simplifying,

x - 8 = 6

x = 8 + 6

x = 14.

Therefore, the value of x is 14.

To learn more about the equation;

https://brainly.com/question/12788590

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PLEASE HELPP!!! BRAINLIEST AND THANKS AND 5 STARS!!

Answers

Answer:

Step four

Step-by-step explanation:

When solving equations you have to flip the sign when you divide negative integers.

Answer:

from my observation there is no mistake but here is my solution

Step-by-step explanation:

-2n+6-5>9

-2n+1>9

-2n>9-1

-2n>8

divide both sides by-2

n>-4

Find m N. Please show me how to work problem 15 out.

Answers

Answer:

468

Step-by-step explanation:

You have to do 12x39

It takes 3 3/4 spoons of chocolate syrup to make 2 1/2 gallons of chocolate milk. How many spoons of syrup would it take to make 3 gallons of chocolate milk?

Answers

Answer:

It would take 4 1/2 spoons

Step-by-step explanation:

To make a half gallon you need .75 spoons of chocolate syrup so to make 6 half gallons(3gallons) you would need 4.5 .75(6)

-4x = 20


Please can you help anything can help

Answers

Answer:

the answer is x=-5. a negative times a negative is a positive.

Answer:

x=-5

Step-by-step explantation

You divide both sides by -4

-4=20

  /

20/-4 = -5

So x=-5

I need help please help

Answers

Answer:

Step-by-step explanation:

page 70/4

Reason 1. Given

Reason 2. Definition of angle bisectors (bisectors form ≅∠s)

Statment3. m∠2 =m∠3

Reason 4. Given

Reason 5. m∠1 +m2=90°, Reason 5. Definition of Complementary ∠s (they add-up to 90°)

Reason 6. because statment 2. and transition propriety ( if a=b and b=c then a=c)

Statment 7. ∠1 is complementary to ∠3

Please answer these! You only have to answer A, B,C, or D.

Answers

I would say option B

There are 30 birds in an enclosure at the zoo. 1/5 of the birds are native to North America. 1/3 of the birds are native to South America. The remaining birds are native to Australla. How many of the birds in the enclosure are Native to Australla? Plz helppppppppp

Answers

Answer:

Number of Australia birds = 14

Step-by-step explanation:

Given:

Total number of birds = 30

North america birds = 1/5 birds = 30/5 = 6  birds

South america birds = 1/3 birds = 30/3 = 10  birds

Find:

Number of Australia birds

Computation:

Number of Australia birds = Total number of birds - North america birds - South america birds

Number of Australia birds = 30 - 6 - 10

Number of Australia birds = 14

my family of 5 needed 1 box of pasta for dinner which one of the following is an equivalent ratio for pasta to people
A. 2:10
B. 10:2
C. 4:5
D. 1.1

Answers

Answer:

10:2

Step-by-step explanation:

when 10:2 is reduced to its simplest whole no. ratio 5:1 is obtained

There are 212.5 grams of sugar in a 2-liter bottle of soda. How much sugar is there in 4.5 bottles? please HELP ME ​

Answers

956.25 is the answer

Because 1 bottle is 212.5 grams of sugar you can just multiply that by 4.5 because there are 4 bottles and a half of a bottle

PLEASE HELP,, MARKING BRAINLIEST!!!

Choose the similarity statement that best represents the triangles. Provide evidence.

A. Triangles are similar by AA similarity.
B. Triangle are similar by SAS similarity.
C. Triangles are similar by SSS similarity.
D. Triangles are not similar.

Answers

Answer: D, these Triangles are not similar.

Step-by-step explanation:

Consider the function f(x) = (x+ 1)2 - 1. Which of the following functions stretches
fo) vertically by a factor of 4?
O A) f0 - (/ax+ 1)2 +3
O B) f9 = 1/ax+ 1)2 -4
Oo fo-4(x+ 1)2 - 1
OD) fo = 4(4x+ 1)2- 1

Answers

Answer:

C

Step-by-step explanation:

A coefficient of 4 would have to be added in front of (x+1)^2 in order to vertically stretch the function by a factor of 4.

The answer that demonstrates this is choice C: [tex]f(x) = 4(x+1)^2-1[/tex]

The functions stretches vertically by a factor of 4 will be f(x) = 4(x+ 1)² - 1. Then the correct option is C.

What is the equation of the parabola?

Let the point (h, k) is the vertex of the parabola and a is the leading coefficient.

Then the equation of the parabola will be given as,

y = a(x - h)² + k

The quadratic function is given below.

f(x) = a(x+ 1)² - 1

If the value of the leading coefficient lies between 0 to 1. Then the parabola is stretched horizontally.

And if the value of the leading coefficient is greater than one. Then the parabola is stretched vertically.

The functions stretches vertically by a factor of 4. Then the value of the leading coefficient is 4. Then the equation will be

f(x) = 4(x+ 1)² - 1

Then the correct option is C.

More about the equation of parabola link is given below.

https://brainly.com/question/20333425

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Explain how to find the rate of change when
given a graph.

Answers

the rate of change is a rate that describes how one quantity changes in relation to another quantity. If x is the independent variable and y is the dependent variable, then. rate of change=change in ychange in x. Rates of change can be positive or negative.

How is The difference of 1 and seven times a number is greater than eight times a number minus 4 written as an equation

Answers

Answer:

no bot really

Step-by-step explanation:

Which function is represented by the graph?

Answers

photo? i cannot answer without a photo:)

Answer:

ummmmmmmm

Step-by-step explanation:

I would help but I have no picture of what you are needing

8 + 3 (71 – 51)
Solve it's for a test!!!​

Answers

Answer:

68

Step-by-step explanation:

8 + 3 (71 – 51)

71-51= 20

20*3=60

60+8=68

what is a coefficient

Answers

Answer:

a numerical or constant quantity placed before and multiplying the variable in an algebraic expression

Step-by-step explanation:

hi

a numerical or constant quantity placed before and multiplying the variable in an algebraic expression

my brain

Need this fast guys, please help a brother out

Answers

Answer: y=-6x+7

Step-by-step explanation:

When it is parallel it needs the same slope

Mrs.Garcia used 5 cups of flour to make 3 loaves of bread. Many can she make if she only has 33 cups of flour?

Answers

kkkkkkkkkkkkkkkkkkkkkk

A 14 foot ladder is set up 4 feet from the base of a building. How far up the building does the ladder reach? Round your answer to the nearest tenth of a foot
A. 16.5 feet
B. 18.0 feet
C. 14.6 feet
D. 13.4 feet

Answers

i
think your answer is D Ai’m not sure

Prove triangle ABD similar to triangle CBD.

Answers

Answer:

THANK YOU

Step-by-step explanation:

<3

Whats the slope-intercept form of y + 11 = -2(x + 1.5)

Answers

Answer:

y = -2x - 14

Step-by-step explanation:

y + 11 = -2(x + 1.5)

Distribute;

y + 11 = -2x - 3

Subtract 11 from both sides;

y = -2x - 14

Y= -2x -14so there you go bro

It cost $20 plus $1.50 per hour to rent a golf cart. Write an equation showing the relationship between the cost of renting a cart (y) and the number of hours it was rented (x).

Answers

Answer:

y=20+1.5x

Step-by-step explanation:

The cost of renting a golf cart is equal to $20 plus $1.50 per hour.

let y=the cost of renting a golf cart

let x=the # of hours

y=20+1.5x

im not sure if this is correct, pls help ! this test is timed !!

Answers

Answer:

im sorry but there is just a black screen

Step-by-step explanation:

4.a number added to 15 gives answer 61 the number is
44
45
46​

Answers

Answer:

46

Step-by-step explanation:

let the number added by this be X ,X+15 = 61 then solve

Answer:

46

Step-by-step explanation:

Let the unknown number be x

x+15=61

x=61-15

x=46

PLEASE ANSWER QUICKLY
Put the following equation of a line into slope-intercept form, simplifying all fractions.

6x+10y= -80

Answers

Answer:

y=-0.6 X-8

Step-by-step explanation:

6x+10y=  -80

Subtract the positive 6x from both sides of the equation

This will make your equation look like 10y=  -80-6x

(If it helps you can rewrite the equation so it looks like 10y=  -6x  -80)

Divide both sides of the equation by 10. This will isolate your Y axis

Now your equation will look like y= (-6x  -80) / 10

I got y=  -0.6x -8

I hope this helps and it is correct :)

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