Question

The Greenville City Garage charges $5 for the first hour and then $2.75 for each additional hour. How long has a car been parked at this garage if the parking charge is $29.75?

Answer 1

5 + 2.75(h-1) = 29.75
2.75(h-1) = 24.75
2.75h-2.75 = 24.75
2.75h = 27.5
h = 10

Answer 2

let x be the additional hours

so the equation would be
5 + 2.75x = 29.75
subtract 5 from both sides
2.75x = 24.75
divide both sides by 2.75
x = 9

however, x is just the additional hour. the car was parked an hour before that so add 1

x + 1 = 10 hours

Answer 3

just another way to solve it