Question

9. Sales tax is 7.596. How much did Tammy's lunch cost before tax If the tax on it was $0.727 Define a variable and write an equation. Solve the

equation and check your solution.
​

Answer 1

Cost of Tammy's lunch box before tax = $9.571

Explanation:

Let the cost of Tammy's lunch box before tax be =$
`x`

Sales tax charged = $0.727

Sales tax rate =7.596%

Sales tax charged in terms of will be = 7.596% of the Original cost of lunch box
`=7.596\% \ of\ x =0.07596\ x`

So, we have,

`0.07596\ x=0.727`

Dividing both sides by
`0.07596`

`(0.07596\ x)/(0.07596)=(0.727)/(0.07596)`

∴
`x=9.571`

∴ Cost of Tammy's lunch box before tax = $9.571