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 blank hours to make $130.

Answer 1

To determine how many hours Christiana should work to make $130 after receiving an $18 tip, we first need to account for the tip.

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

2. Next, we need to find out how many hours she needs to work to make $112 at a rate of $14 per hour: \[ \text{Hours worked} = \frac{\text{Total desired earnings}}{\text{Hourly wage}} = \frac{112}{14} \]

3. Calculate: \[ \frac{112}{14} = 8 \]

So, Christiana should work 8 hours to make $130 after receiving the $18 tip.