Question

Medal to the helper!

What is an expression for the sale price of a bracelet that has been discounted 60% from its sticker price? Evaluate the expression for sticker prices of $90.

Use the Variables s for the sale price and p for the sticker price

Answer 1

Let p = sticker price and s = sale price

p is the original price before the discount

we take 60% of p to get 0.60p or 0.6p. This is the amount you save. Subtract this from the original price:

p - 0.6p = 1p - 0.6p = 0.4p

So essentially you are paying for 40% of the original price

This means

s = 0.4p

Answer 2

if the sticker price is $90, the plug p = 90 into s = 0.4p to find s