Question

At a clothing store jackets are on sale for 30% off.Sales tax is 5%.Which expression will calculate the total cost of a jacket with an original price of x?

Answer 1

Explanation:

Let x represent the original price of the jacket.

At a clothing store, jackets are on sale for 30% off. This means that x will be reduced by 30%. There is also

Sales tax of 5%. This means that x would increase by 5%. The net change in price of the jacket in terms if percentage will be 30% - 5% = 25%.

Therefore,

The total cost of the jacket will be the original price - 25% of the original price. The expression becomes

Let y represent the total cost

y = x - 0.25x = 0.75x