Unit Rate/Proportions

Maura runs 5 miles in 1.25 hours. Ava runs 3 miles in 50 minutes or 0.83 hour. Who runs faster?

• Maura

• Ava

Tags

CCSS.6.RP.A.3A

A group of 12 students is deciding whether to go to the science center or the zoo. Science center tickets are 3 for $36.75 and zoo tickets are 4 for $51. How much will a group of 12 students save by choosing the science center?

• $147

• $12.25

• $6

• $153

Tags

CCSS.6.RP.A.3B

Clara and Toby are telemarketers. Yesterday, Clara reached 4 people in 10 phone calls, while Toby reached 3 people in 8 phone calls. If each telemarketer continues at the same rate, who will reach more people in 40 calls? And by how much?

• Clara by 1

• Toby by 12

• Clara by 40

• Toby by 16

Answer explanation

You can set up two different proportins for each person to see how much they will do in 40 calls, then can compare

Tags

CCSS.6.RP.A.3B

Select the unit rate

Answer explanation

unit rate is when one is the denominator

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

• 54 words per minute

• 30 words per minute

• 82 words per miniute

• 40 words per minute

Tags

CCSS.7.RP.A.1

Answer explanation

set up a proportion

Tags

CCSS.6.RP.A.3B

Harper knows he is 50 yards from school. The map on his phone shows that the school is 34 inch from his current location. If Harper’s current location is 3 inches from home on the same map, how far is Harper from home?

• less than a yard

• 600 yards

• 200 yards

• 150 yards

Tags

CCSS.6.RP.A.3D

How do you know whether two quantities x and y are proportional?

• Every x term is a multiple of the previous term.

• Every sum x + y is the same for related pairs of x and y.

• Every difference x - y is the same for related pairs of x and y

Tags

CCSS.7.RP.A.2A

The relationship between x and y is proportional. When x is 3, y is 51.What is x when y is 204?

• 10

• 12

• 3

• 612

Tags

CCSS.7.RP.A.2B

A recipe calls for 1 and half teaspoons of cinnamon to make 2 dozen oatmeal cookies. How many teaspoons of cinnamon are needed to make 60 oatmeal cookies?

• 7

• 2

Tags

CCSS.7.RP.A.1