Question

A store is having a " 15 % off sale on perfume . You have a coupon for 50 % off any perfume . What is the final price , in dollars , of a $ 30 bottle of perfume ? If necessary round your answer to the nearest cent .

Answer 1

$12.75

Step-by-step explanation

The store is selling the perfumes at 15% off the original price, so if a bottle of perfume costs $30, then they are selling it at,

`30\cdot(100-15)/(100)=30\cdot(85)/(100)=30\cdot0.85=25.50`

But you also have a coupon for 50% off, so you get to buy the perfume at half that price,

`25.50\cdot(50)/(100)=25.50\cdot0.5=12.75`

Hence, the final price of the perfume is $12.75.