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.
Remaining Attempts : 3

1 answer

To find out how many hours Christiana needs to work, we first need to account for the tip she will receive for hosting the birthday party.

  1. Calculate the total amount needed after the tip:
    Christiana needs to make $130 for her car insurance, and she will receive an $18 tip.

    \[ \text{Amount still needed} = 130 - 18 = 112 \]

  2. Calculate the number of hours she needs to work:
    Christiana earns $14 per hour. Now we need to find out how many hours she needs to work to make the remaining $112.

    \[ \text{Hours needed} = \frac{\text{Amount still needed}}{\text{Hourly wage}} = \frac{112}{14} \]

    \[ \text{Hours needed} = 8 \]

So, Christiana should work 8 hours to make the $130 needed for her car insurance.