Pat washes 21 cars a day. He is paid at a rate of 7.50 for every 3 cars he washes. How much is pat paid for each car he washes?

Question

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Answer 1

Notice that $7.50 for 3 cars is a unit rate $2.50 for 1 car.

Multiply the unit rate by 21 to see what Pat's pay is for washing 21 cars in a single day.