Question

Lisa buys a television for $4185. if the sales tax is $292.95. what percent is sales tax?

Answer 1

Sales tax = 7%.

Explanation:

Let x be the percent of sales tax.

We have been given that Lisa buys a television for $4185. The sales tax is $292.95.

We need to figure out x such that x percent of 4185 equals to 292.95. Let us represent this information in an equation.

`(x)/(100)*4185=292.95`

Let us multiply both sides of equation by 100.

`100*(x)/(100)*4185=100*292.95`

`x*4185=29295`

`x=(29295)/(4185)`

`x=7`

Therefore, sales tax is 7%.

Let us cross check our answer by calculating 7% of 4185.

`7\%\text{ of } 4185=(7)/(100)* 4185`

`7\%\text{ of } 4185=0.07* 4185`

`7\%\text{ of } 4185=292.95`

We can see that 7% of 4185 is 292.95. Hence, sales tax is 7%.