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Mei is competing in a remote-control car race. She can complete 15 laps in 24 minutes. Find how long it will take mei to finish 20 laps if she keeps the same speed

2 Answers

1 vote

Answer:

It will take Mei 32 minutes to finish 20 laps

Explanation:

* Lets explain how to solve the problem

- Mei is competing in a remote-control car race

- She can complete 15 laps in 24 minutes

- We need to find how long she will take to finish 20 laps if she keeps

the same speed

∵ Mei can complete 15 laps in 24 minutes

- Lets find her unit rate

∵ Her unit rate = number of laps ÷ the time of this laps

∴ Her unit rate = 15 ÷ 24 = 0.625 lap per minute

- Now we can use her unit rate to find the time of any numbers of laps

∵ She keeps her rate

∵ She will finish 20 laps

∵ Time = number of laps ÷ her rate

∴ Time = 20 ÷ 0.625

∴ Time = 32 minutes

User Robert Stevens
by
8.9k points
4 votes

Answer:

It will take Mei 32 minutes to finish 20 laps

Explanation:

* Lets explain how to solve the problem

- Mei is competing in a remote-control car race

- She can complete 15 laps in 24 minutes

- We need to find how long she will take to finish 20 laps if she keeps

the same speed

∵ Mei can complete 15 laps in 24 minutes

- Lets find her unit rate

∵ Her unit rate = number of laps ÷ the time of this laps

∴ Her unit rate = 15 ÷ 24 = 0.625 lap per minute

- Now we can use her unit rate to find the time of any numbers of laps

∵ She keeps her rate

∵ She will finish 20 laps

∵ Time = number of laps ÷ her rate

∴ Time = 20 ÷ 0.625

∴ Time = 32 minutes

* It will take Mei 32 minutes to finish 20 laps

User Sekou
by
7.9k points

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