Question

A car rental company charges a daily rate of 23$ plus $0.30 per mile for a certain car. Suppose that you rent a car for a day and your bill (before taxes) is $158. How many miles did you drive

Answer 1

$x-\ amount\ of\ miles\\\\ 23+0,3*x=158\ \ \ |subtract\ 23\\\\ 0,3x=135\ \ \ \ |divide\ by\ 0,3\\\\x=450\\\\I\ drove\ 450\ miles.$