Question

Find the unit rate, and then use it to solve the problem.

Some students washed 24 cars in 2 hour.

How many cars can they wash in 15 hours?



A. 12
B. 48
C. 180
D. 360

Answer 1

@aminamoazzam @johnweldon1993 @Jravenv

Answer 2

If they can wash 24 cars in 2 hours...how many cars can they wash in 1 hour?

Answer 3

After finding that result

If they wash 'x' many cars in 1 hour...then in 15 they wash \(\large 15x\)

Answer 4

12 cars in a hour @johnweldon1993

Answer 5

Right, and that is our unit rate...how many cars per unit "hours"

So if they wash 12 cars per hour...then in 15 hours they wash...?

Answer 6

the answer is D

Answer 7

180

Answer 8

Perfect ^_^

Answer 9

Thanks @johnweldon1993