SOLUTION: Tim works part-time at a retail store. His salary varies directly by the number of hours worked. Last week he earned $99.45 for 13 hours of work. This week he earned $160.65. a.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Tim works part-time at a retail store. His salary varies directly by the number of hours worked. Last week he earned $99.45 for 13 hours of work. This week he earned $160.65. a.       Log On


   

Question 841298: Tim works part-time at a retail store. His salary varies directly by the number of hours worked. Last week he earned $99.45 for 13 hours of work. This week he earned $160.65.
a. Write and solve an equation that represents this scenario.
b. How many hours did he work?

Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
99.45/13=160.65/x
99.45x=160.65*13
x=2088.45/99.45
x=21 hrs