Question

A television is on sale for 20% off. If the sale price is $399, what was the original price? 

A. $319.20
B.$1,995
C. $498.75
D. $379.00​

Answer 1

`\$498.75`

Explanation:

Let
`x` be the original price of the item. We can set up the following equation:

`x\cdot (1-0.2)=399`.

Solving for
`x`, we get:

`x\cdot 0.8=399,\\x=(399)/(0.8),\\x=\fbox{$\$498.75$}`.