Question

Heather paid $2,022.30 for a computer. If the price paid includes a 7% sales tax, which if the following equation can be used to determine the price of the computer after tax?

(Let x represent the cost of the computer and y represent the total cost after tax.)

Answer 1

The answer is down below have a great day!

Answer 2

D)
`y=1.07x`

Explanation:

The Total cost, price plus taxes, will given by

1) Dividing the tax 7 by 100, and write it in its decimal form:

`(7)/(100)=0.07`

2) Add the number 1, and make it a constant

`0.07+1=1.07 \Rightarrow y=1.07x`

This function fits to calculate the total cost after a 7% tax. In this case just plug $2,022.30 for x, then solve for y to have the total cost.

`y=1.07(2,022.30)=\$2,163.86`