Question

a cell phone company is giving a 20℅ discount on all phone accessories which expression can used to find the sale price of an item with an original price of x dollars?​

Answer 1

The expression that can be used is 0.80x

Explanation:

Let

x ----> original price of an item

Remember that

`100\%-20\%=80\%`

That means---> the sale price is 80% of the original price

To find out the sale price, determine the 80% of the original price

`80\%=80/100=0.80` ----> percentage in decimal form

Multiply the original price by the percentage in decimal form to obtain the sale price

so

`0.80x`