Chapter 6.1, Problem 48HP

To determine

To find: Whether Francisa is correct or Alan is correct.

Answer to Problem 48HP

Francisca is correct

Explanation of Solution

Given information:

Store A is offering a $10\%$ discount on purchase of all electronics in their store.

Store B is offering $\$10$ off all the electronics in their store.

If the item is less than $\$100$ , then $\$10$ off is better.

If the item is more than $\$100$ , then the $10\%$ is better.

Consider purchasing an item that cost $\$175$ .The cost they will have to pay at Store A is $\$175\left(1-0.10\right)$ that is $\$157.50$ .

At store B, the cost would be $\$165$ .

However, if they purchased a item at $\$75$ , at store A, the cost would be $\$67.5$ compared to $\$65$ at Store B.

Therefore,

Francisca is correct, you must know the price of the item before choosing the store.