Nathan wants to buy a sweatshirt and is trying to determine the better buy. He has a 3030 % coupon for the in-store purchase. The store charges $3838 for the sweatshirt he wants. However, he found the same sweatshirt online for $3434 and gets 2525 % off as a first-time buyer. There are no shipping charges. Which is the better buy? By how much? Use the Polya problem solving method to solve this problem.

It is better online, for 1.1 dollars

Explanation:

Do you understand all the words used in stating the problem?

Yes.

What are you asked to find or show?

The differnece in price bewtween the store T-shirt and the On-line T-shirt

Can you restate the problem in your own words?

Nathan can purchase a Tshirt by $38 with 30% discount or $34 with 25% discount. Which is the cheapest option?

Is there enough information to enable you to find a solution?

Yes, we have the list price for both T-shirt and the discount on each one.

Devise a plan:

Use a formula

list price less discount = net cost

We will calculate the net cost for the T-shirt

in-store purchase scenario

$38 - 30% coupon = 26.6 dollars

on-line purchase scenario

$34 - 25% off = 25,5‬ dollars

The difference will be:

$26.6 - $25.5 = 1.1 dollar in favor of the online purchase