Question

Dave can clean pools at a constant rate of 3/5 pools/hour.

a. What is the ratio of the number of pools to the number of hours?
b. How many pools can Dave clean in 10 hours?
c. How long does it take Dave to clean 15 pools?

Answer 1

a. 3/5 pools per hour.

b. 6 pools

c. 25 hours

Explanation:

Hi, the answers are.

The ratio of the number of pools to the number of hours is already given in the question. Is 3/5 pools per hour.

Ratio = number of pools/ time

b. We have to multiply the ratio by 10 hours.

3/5 pools/hour x 10 hours = 6 pools

c. we have to divide the number of pools (15) by the ratio

15 pools /3/5 pools/hour = 25 hours

Feel free to ask for more if needed or if you did not understand something.

Answer 2

a. 3/5

b. 6 hours

c. 9 hours

Explanation:

Given: Dave can clean pools at a constant rate of 3/5 pools/hour.

this means he cleans 3 pools in 5 hours

a.the ratio of number of pools to the number of hours= 3/5

b. since, we can clean 3 pools in 5 hours

this means he can clean 1 pool in 3/5 hours

so, he can clean 10 pools in 10×3/5 hours = 2 hours.

c. so, for 15 pools it will take 15×3/5 = 9 hours