Frankie washed 15 cars in three hours.
How many cars can
he wash in seven
hours?

It’s either 35 or 41.

35

This means he took 60 mins/5 to wash each car = 12 mins.

7 hours = 7* 60 mins= 420 mins

cars he washed in 7 hours = 420/12 = 35

OR

he took 3 hours to wash 15 cars so he can wash 30 in 6 hours, hs rate = 5 cars/ hour = 30 + 5 = 35

the equation is not included but the answer is (1.50, 2.00, 2.75)

step-by-step explanation: