Problema Solution
A parking garage charges 3$ for the first hour and 2$ for each additional hour or fraction thereof. If 9$ was paid for parking, how many hours was the car parked in the garage?
Answer provided by our tutors
let x = the hours the car was parked in the garage
3 + 2*(x - 1) = 9
by solving we find
x = 4 hours
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indeed for 4 hours the total cost will be 3$ (for the first hour) + 2*3 (for the additional 3 hours) = 3 + 6 = $9.