Question

at a clothing store, levi's jeans are on sale for 40% off. sales tax is 7%. which expression will calculate the total cost of levi jeans with an original price of x?​

Answer 1

Given:

Discount = 40%

Sales tax = 7%

To find:

The total cost of levi jeans with an original price of x.

Solution:

Let x be the original price of the jeans. Then the price after 40% discount is

`Price=x-40\%\text{ of }x`

`Price=x-(40)/(100)x`

`Price=x-0.4x`

`Price=0.6x`

The price after 7% of sales tax.

`Price=0.6x+7\%\text{ of }0.6x`

`Price=0.6x+(7)/(100)* 0.6x`

`Price=0.6x+0.042x`

`Price=0.642x`

Therefore, the total cost of the levi jeans with an original price of x is represented by the expression 0.642x.