Problema Solution

David works as a tutor for

$10

an hour and as a waiter for

$13

an hour. This month, he worked a combined total of

104

hours at his two jobs.

Let

t

be the number of hours David worked as a tutor this month. Write an expression for the combined total dollar amount he earned this month.

Answer provided by our tutors

t = the number of hours David worked as a tutor

104 - t = the number of hours David worked as a waiter

The expression for the combined total dollar amount earned is:

10t + 13(104 - t) = 1,352 - 3t