Proportional Relationships: Equivalent Ratios

In a certain apartment building, the ratio of tenants to cars is 3:5. If there are 30 tenants, how many cars are there?

• 35
• 60
• 18
• 50

Jose swims 3 laps in a pool every 2 minutes. How long would it take him to swim 27 laps?

• 8 minutes
• 9 minutes
• 16 minutes
• 18 minutes

Do the ratios form a proportion?

• Yes, they form a proportion.
• No, they do not form a proportion.

Do the ratios form a proportion?

• Yes, they form a proportion.
• No, they do not form a proportion.

A grading machine can grade 48 multiple-choice tests in 1 minute. How long will it take the machine to grade 300 tests?

• 6.25 Min
• 0.16 Tests
• 6.25 Tests
• 0.16 Min

Solve the proportion below:

• 5
• 10
• 15
• 6

About 13 out of 20 homes have a personal computer. On a street with 60 homes, how many computers would you expect to have?

• 39 Computers
• 4.3 Homes
• 39 Homes
• 4.3 Computers

Solve the proportion below:

• 418
• 2
• 38
• 11

The waiting time to ride a roller coaster is 20 minutes when 150 people are in line. How long is the waiting time when 240 people are in line?

• 32 People
• 32 Min.
• 12.5 Min.
• 12.5 People

Solve the proportion below:

• 3
• 24
• 21
• 12