Unit 7.2 - Unit Rates and Proportions

What does the "unit rate" represent?

• A number we use in math.

• How much "one" of something is.

• The amount being divided by x to find y.

• The number we use to find x.

Tags

CCSS.6.RP.A.2

CCSS.6.RP.A.1

Mr. Bojorquez grades 5 papers in 30 minutes. How many papers can he grade in 1.5 hours?

• 10

• 12

• 15

• 16

Tags

CCSS.6.RP.A.3B

True or false: Does this graph represent a proportional relationship?

• True

• False

Tags

CCSS.7.RP.A.2D

Your payrate at a job is y = 14x where y is dollars and x is hours. How much do you make in 13 hours?

• 196

• 14

• 140

• 182

Tags

CCSS.7.RP.A.3

Your payrate at a job is y = 14x where y is dollars and x is hours. How many hours would it take to make $350 dollars?

• 14

• 25

• 35

• .04

Tags

CCSS.7.EE.B.3

Which of the ratios are not proportional to 3:7?

• 1 : 3.5

• 6 : 14

• 9 : 21

• 12 : 28

Tags

CCSS.7.RP.A.2A

If our constant of proportionality is k=5, what would be our proportional equation?

• 5=yx

• y =5x

• 5=y/x

• x=5y

Tags

CCSS.7.RP.A.2C

On the graph, what is the constant of proportionality?

• 3

• 2

• 1/3

• 1/2

Tags

CCSS.7.RP.A.2D

The "unit rate" and "constant of proportionality" are the same thing.

• True

• False

Tags

CCSS.7.RP.A.2B

Person A (red)and Person B (blue) are walking and their walk is represented by this graph. Who is walking faster?

• Person A

• Person B

Tags

CCSS.7.RP.A.2D