Question

mick paid 2.94 in sales tax on an item that cost $42.00 before tax. at that rate how much would he pay in sales tax for an item that cost $58.00 before tax?

Answer 1

$ 4.06 sales tax would be paid.

Explanation:

Given,

The sale tax is $ 2.94 on an item that cost $42.00 before tax.

That is, the sales tax on an item costs $42.00 = $ 2.94

⇒ The sales tax on an item costs $ 1 =
`(2.94)/(42)`

So the sales tax on an item costs $ 58.00 =
`58.00* (2.09)/(42)`

`=(170.52)/(42)`

`=\$4.06`

Hence, $ 4.06 sales tax would be paid for an item that cost $58.00 before tax.

Answer 2

1) Calculate the tax rate

rate = (tax / cost before tax)*100% = (2.94 / 42.00)*100% = 7%

2) Use the same rate to calculate the tax over the new item:

tax = cost before tax * rate = $58.00 * 7% = $4.06

Answer: $4.06