Question

Alex and Lara have $21.00 each to spend at a book fair, where all students receive a 35% discount. They both want to purchase a copy of the same book, which normally sells for $28.50 plus 10% sales tax. To check if he has enough to purchase the book, Alex takes 35% of $28.50 and subtracts that amount from the normal price. He takes 10% of the discounted selling price and adds it back to find the purchase amount. Lara takes 65% of the normal purchase price and then computes 110% of the reduced price. Is Alex correct? Is Lara correct? Do they have enough money to purchase the book? Explain your answer using complete sentences, and show your work.

Answer 1

Answer:

they will have 15.02 left over

Step-by-step explanation:

Alex:

21*.35=7.35

21-7.35= 13.65

13.65*.10=1.37

13.65+1.37=15.02

Lara:

21*.65=13.65

13.65*1.10=15.02

They are both correct but the easier way to get the answer is Alex's way.

Answer 2

The answer is 15.02
Alex is correct on this
Hoped it helped:)