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

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

anonymous · Answer

@aminamoazzam @johnweldon1993 @Jravenv

johnweldon1993 · Answer

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

johnweldon1993 · Answer

After finding that result

If they wash 'x' many cars in 1 hour...then in 15 they wash $\large 15x$

anonymous · Answer

12 cars in a hour @johnweldon1993

johnweldon1993 · Answer

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...?

anonymous · Answer

the answer is D

anonymous · Answer

180

johnweldon1993 · Answer

Perfect ^_^

anonymous · Answer

Thanks @johnweldon1993