Question

Stores often mark up items each year to cover inflation. Last year, a CD at Juan’s Tunes cost $12.95. This year, the cost was marked up 8%. The store also gave anyone who bought four CDs this year a 10% discount. Explain the steps to find the final cost for the four CDs this year.

Answer 1

The new price would be 108% of last year’s price. Multiply the new price by 4 and then multiply that amount by 90% to find the sale price.

or

Multiply $12.95 by .08 and add the increase to $12.95.

Multiply $12.95 by 1.08. This is the new increased price.

Multiply the new price by 4, and then by .90. This is the sale price.

Multiply the new price of the four CDs by .10 and subtract the amount from the price of the four CDs

Explanation:

sample answer

Answer 2

12.95x8%=1.036

12.95+1.036=13.986

13.986x4=55.94-10%=

$50.3496

rouding up would be $50.35 for 4 cds this year