Jason is saving up for a skateboard and helmet. The skateboard is $45.50 with tax and the helmet is $18.25 with tax. He earned 1/3

Question

of the money by mowing lawns and the rest by babysitting. How much did Jason earn babysitting?

A.

$19.13

B.

$21.25

C.

$30.33

D.

$42.50

Answer 1

To determine how much Jason earned babysitting, we first need to calculate the total cost of the skateboard and helmet.

1. Calculate the total cost: \[ \text{Total cost} = \text{Cost of skateboard} + \text{Cost of helmet} \] \[ \text{Total cost} = 45.50 + 18.25 = 63.75 \]

2. Determine how much he earned from mowing lawns: Jason earned \( \frac{1}{3} \) of the total cost by mowing lawns. \[ \text{Earnings from mowing lawns} = \frac{1}{3} \times 63.75 = 21.25 \]

3. Calculate how much he earned babysitting: The remainder of his earnings, which is \( \frac{2}{3} \) of the total cost, is what he earned from babysitting. \[ \text{Earnings from babysitting} = \text{Total cost} - \text{Earnings from mowing lawns} \] \[ \text{Earnings from babysitting} = 63.75 - 21.25 = 42.50 \]

Thus, Jason earned $42.50 babysitting.

The answer is: D. $42.50