Steve washed 15 cars in 3 hours and can wash 35 cars in 7 hours.
We have given that Steve washed 15 cars in 3 hours.
We have to determine if the cars can be Washed in 7 hours.
15/3 = x/7.
Use cross products and multiply 15*7
= 105/3
= 35.
He can wash 35 cars in 7 hours
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