
Constant of Proportionality (unit rate)
Authored by Gabby Garcia
Mathematics
7th Grade
CCSS covered
Used 20+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A rocket travels at a rate of 160 meters in 3 seconds. What is the speed of the rocket in meters per second? (hint: set up proportions meters/seconds= meters/seconds
A. 60 m/sec
B. 53 1/3 m/sec
C. 65 1/4 m/sec
D. 48 m/sec
E. 480 m/sec
Tags
CCSS.6.RP.A.3B
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The table shows the number of times a grasshopper chirped in a given time period. Which of the following best describes the constant of proportionality? (hint: set up your proportions using the anwers as the first fraction and one of the pairs on the table that matches the time- then compare- no work required)
A. The grasshopper chirps 45 times in 1/2 minute
B. The grasshopper chirps 90 times in 1 minute
C. The grasshopper chirps 22.5 times in 1 minute
The grasshopper chirps 135 times in 1.5 minutes
Tags
CCSS.7.RP.A.2B
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The graph shows number of calories in a given number of donuts. Which of the following best describes the constant of proportionality? (to find the k, you need to find the value of y when x=1) (use the graph on your work)
A. 100 calories per donut
B. 300 calories per donut
C. 150 calories per donut
D. 600 calories per donut
Tags
CCSS.7.RP.A.2B
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Peyton ran 4/5 of a mile in 1/8 of an hour. What is Peyton's constant of proportionality in miles per hour? (set up your proportion first. .80/.125 = x/1 and solve)
A. 6.4 mph
B. 15.6 mph
C. 5.8 mph
D. 8.1 mph
E. 4.9 mph
Tags
CCSS.7.RP.A.2B
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The table shows Jamal's salary earned. How much does Jamal earn per hour?
A. $10.25
B. $11.50
C. $12.75
D. $14.50
Tags
CCSS.6.RP.A.3B
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A company is trying to decide which container of coffee to buy for a staff meeting. Which of the following would be the best deal? (Hint: find the UNIT rate for each by dividing the cost / ounces, then compare UNIT PRICE
A. 48 ounces for $5.00
B. 32 ounces for $4.00
C. 60 ounces for $6.75
D. 45 ounces for $4.50
Tags
CCSS.6.RP.A.3B
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Leah and her friends go on a hot air balloon ride. What is the constant rate of proportionality in feet per minute?
A. 175 ft/min
B. 187.5 ft/min
C. 1,500 ft/min
D 700 ft/min
Tags
CCSS.7.RP.A.2D
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