SOLUTION: A mechanic charged $45 an hr , plus $225 for the parts if the total bill was 450, how long did the job take ?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A mechanic charged $45 an hr , plus $225 for the parts if the total bill was 450, how long did the job take ?      Log On


   

Question 476031: A mechanic charged $45 an hr , plus $225 for the parts if the total bill was 450, how long did the job take ?
Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
Let x is a time
45x%2B225=450
45x=450-225
45x=225
x=225%2F45
x=5 hours