Question

Kareem works as a tutor for $13 an hour and as a waiter for $8 an hour. This month, he worked a combined total of 99 hours at his two jobs. Let "x" be the number of hours Kareem worked as a tutor this month. Write an expression for the combined total dollar amount he earned this month.

a) 13x + 8(99 - x)
b) 13x + 8x
c) 13x + 8(99)
d) 13(99 - x) + 8x

Answer 1

The expression for the combined total dollar amount Kareem earned this month is 13x + 8(99 - x), where x represents the number of hours Kareem worked as a tutor.

Step-by-step explanation:

The combined total dollar amount Kareem earned this month is represented by the expression 13x + 8(99 - x).

Here's the step-by-step explanation:

Kareem worked as a tutor for $13 an hour, so the amount he earned as a tutor is 13x, where x represents the number of hours he worked as a tutor.

Kareem also worked as a waiter for $8 an hour. The amount he earned as a waiter is 8(99 - x), where (99 - x) represents the number of hours he worked as a waiter.

To find the combined total, we simply add the two amounts: 13x + 8(99 - x).

Therefore, the correct expression for the combined total dollar amount Kareem earned this month is 13x + 8(99 - x) (option a).