Solve the equation for y.
-A repair company's charge for repairing a certain type of copy machine fits the model y = 47.38 + 0.617x where y is the number of dollars charged and x is the number of minutes the repair person is on the job. How many
Minutes would it take for the cost of repair to reach $120? (Round to the nearest minute.)

Question

Quizplus · Accepted Answer

To find x, set y = 120 and solve: 120 = 47.38 + 0.617x. Subtract 47.38 from both sides to get 72.62 = 0.617x. Divide by 0.617 to find x ≈ 118 minutes.

Solve the Equation for Y