Question

Christiana makes $14 per hour working at the roller-skating rink. She needs to make $130 to pay her car insurance. How many hours should she work if she receives an $18 tip for hosting a birthday party that day? ( 1 point) She should work hours to make $130.

Answer 1

To calculate how many hours Christiana should work to make $130, considering she will receive an $18 tip, we can follow these steps:

1. First, determine how much she needs to make from her hourly wage after receiving the tip:
\[
\text{Amount needed from hourly work} = \text{Total needed} - \text{Tip}
\]
\[
\text{Amount needed from hourly work} = 130 - 18 = 112
\]

2. Next, calculate how many hours she needs to work to earn $112 at a rate of $14 per hour:
\[
\text{Hours needed} = \frac{\text{Amount needed from hourly work}}{\text{Hourly wage}} = \frac{112}{14}
\]
\[
\text{Hours needed} = 8
\]

So, Christiana should work **8 hours** to make $130, after receiving her tip.