Question

The bill for the repair of a computer was $179. The cost of parts was $44, and labor charge was $45 per hour. How many hours did it take to repair the computer?

Answer 1

3 hours.

Explanation:

$179 - $44 is the amount that the labor cost.

$179 - $44 = $135

now labor was $45 hour so you need to divide the $135 by this:

`($135)/($45 hour) =3 " hours"`

notice the $ cancel and the hours remain. Don't forget ALL word problems must have units, in this case the units are hours.