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Unit Rate and Constant of Proportionality

Unit Rate and Constant of Proportionality

Assessment

Presentation

Mathematics

7th Grade

Medium

CCSS
7.RP.A.2B, 6.RP.A.1, 6.NS.B.3

+2

Standards-aligned

Created by

Jelisa Love

Used 16+ times

FREE Resource

3 Slides • 23 Questions

1

MATH STAAR REVIEW

7.4B- calculate unit rates from rates in mathematical and real‐world problems
7.4C- determine the constant of proportionality (k = y/x) within mathematical and real‐world problems 

2

3

Multiple Choice

A ratio is a

1

comparison of two quantitities

2

a comparison of two quantities with units

3

a comparison of two quantities with units when the quantity in the denominator is 1

4

the number in front of the variable in an expression or equation

4

Multiple Choice

A rate is a ratio that compares

1

A part to a part

2

A part to a whole

3

Quantities with different units

4

Quantities with the same units

5

Multiple Choice

A unit rate is a rate in which the unit in the denominator is:

1

0

2

3

3

1

4

2

6

Multiple Choice

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

1

$8 per pound

2

$35 per pound

3

$5 per pound

4

$0.125 per pound

7

Multiple Choice

A store has 120 customers in 6 hours. What is the unit rate in customers per hour?

1

16 customers per hour

2

12 customers per hour

3

20 customers per hour

4

15 customers per hour

8

Multiple Choice

Will spent $3.75 for 3 pounds of granola. What is his unit rate in dollars per pound?

1

$.50 per pound

2

$1.25 per pound

3

$3 per pound

4

$2.50 per pound

9

Multiple Choice

If Antonia can type 408 words in 4 minutes, how many words can she type per minute?

1

408 words per minute

2

100 words per minute

3

400 words per minute

4

102 words per minute

10

Multiple Choice

It cost me $46.80 to fill my 13-gallon gas tank. What was the price of gas per gallon?

1

$3.60

2

$3.55

3

$3.40

4

$3.50

11

Multiple Choice

You're throwing a party, and you ordered 15 pizzas for your guests. Your total came to $97.50. What was your unit cost per pizza?

1

$4.95 per pizza

2

$5.75 per pizza

3

$7.25 per pizza

4

$6.50 per pizza

12

Multiple Choice

A car is going 50 miles per hour. A rate that describes this would have units of

1

Miles and cars

2

Miles and hours

3

Miles only

4

Hours only

13

Multiple Choice

If Maya makes $10 an hour at her after school job, how many hours will it take her to earn $150?

1

10 hours

2

1.5 hours

3

15 hours

4

20 hours

14

Multiple Choice

After 3 hours, Ernie had travelled 195 miles. If he travels at a constant speed, how far will he have travelled after 5 hours?

1

400 miles

2

325 miles

3

575 miles

4

650 miles

15

​https://youtu.be/0Y0blHsu-wM?si=N4LhPJMvRnCHX4aj

16

Multiple Choice

Question image

Determine the constant of proportionality for the table. Express your answer as y = kx

1

y = 1/2x

2

x = 1/2y

3

y = 2x

4

k = x

17

Multiple Choice

Question image

Determine the constant of proportionality for the table. Express your answer as y = kx

1

y = 30k

2

y = 30x

3

y = 0.03x

4

y = 9x

18

Multiple Choice

Question image

Determine the constant of proportionality for the table. Express your answer as y = kx

1

15k

2

x = 15y

3

y = 0.06x

4

y = 15x

19

Multiple Choice

Question image
What is the constant of proportionality?
1
$3
2
$4
3
$2
4
$9

20

Multiple Choice

Question image
What is the constant of proportionality for the following graph?
1
80
2
20
3
40
4
160

21

Multiple Choice

Question image

Identify the constant of proportionality.

1

k = 2x

2

k = 2

3

k = 4

4

none (not proportional)

22

Multiple Choice

Question image

Identify the constant of proportionality.

1

k = 6

2

k = 12

3

k = 1/6

4

k = 1/12

5

none (not proportional)

23

Multiple Choice

Question image

Identify the constant of proportionality.

1

k = 5

2

k = 1/5

3

k = 1

4

k = 2.5

5

none (not proportional)

24

Multiple Choice

Question image

Identify the constant of proportionality.

1

k = 2

2

k = 3

3

k = 1.50

4

k = 2/3

5

none (not proportional)

25

Multiple Choice

The constant of proportionality in the equation y = ½x is _______. 
1
x
2
y
3
1/2
4
2

26

Multiple Choice

Question image
What is the constant of proportionality? 
1
4
2
1/4
3
8
4
1/8

MATH STAAR REVIEW

7.4B- calculate unit rates from rates in mathematical and real‐world problems
7.4C- determine the constant of proportionality (k = y/x) within mathematical and real‐world problems 

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