lunam123 lunam123

23-10-2020
Mathematics

contestada

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

It’s either 35 or 41.

Frankie washed 15 cars in three hours How many cars can he wash in seven hours Its either 35 or 41 class=

Respuesta :

s21251876 s21251876

23-10-2020

Answer:

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

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