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?

Question

She should work ____ hours to make $130.

Answer 1

To find out how many hours Christiana needs to work to make $130 for her car insurance, we first account for the $18 tip she will receive.

1. Subtract the tip from the total amount she needs: \[ 130 - 18 = 112 \] So, she needs to make $112 from her hourly wage.

2. Christiana makes $14 per hour. To find out how many hours she needs to work to earn $112, divide $112 by her hourly wage: \[ \frac{112}{14} = 8 \]

Therefore, Christiana should work 8 hours to make $130 after accounting for her tip.