Unit Rate and ratios

Maura runs 5 miles in 1.25 hours. Ava runs 3 miles in 0.83 hours. Who runs the fastest?

• Ava

• Maura

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? How many more?

• Clara/ 4 people more

• Toby/ 4 people more

• both will reach the same amount of people

It costs $36.75 for 3 tickets t visit the science center. It costs $51 for 4 tickets to visit the zoo. Which attraction will cost more money for a group of 12 students to visit? How much more?

• Science center/ $6

• Science center / $5

• zoo / $6

• zoo / $5

Which of the following statements about unit rates is not true?

• A unit rate relates to a quantity of 1

• Unit rate can be used to compare two rates

• Any rate is equivalent to its unit rate.

• A unit rate always relates quantities with the same units

Machine A pops 12.75 ounces of popcorn in 3 minutes. Machine B pops 18 ounces of popcorn in 4 minutes. If each machine pops popcorn for 10 minutes, will there be enough popcorn for eight 9- ounce bags?

• no there will not be enough popcorn popped by both machines.

• yes, both machines will pop 87.5 ounces which will make (9) 9 oz bags of popcorn.

• yes, both machines will produce (10) 9oz bags

Suppose a class has 14 redheads, 8 brunettes, and 6 blondes. What is the ratio of redheads to brunettes?

• 14/8

• 14/6

• 6/14

• 8/14

Write the unit rate for the situation. Earn $92 in 8 hours.

• $11.10 for every hour

• $11.12 every hour

• $11.14 every hour

• $11.15 every hour

In 3 hours, a car traveled 210 miles. Find the unit rate of miles per hour.

• 20 miles every hour

• 60 miles every hour

• 70 miles every hour

• 80 miles every hour

John spent $72 to buy 9 basketballs. What was the price per basketball?

• $6

• $7

• $8

• $9

A printer printed 1650 pages in 15 minutes. Find the unit rate of pages per minute.

• 50 pages

• 60 pages

• 110 pages

• 115 pages