Question

PLEASE HELP ASAP

You spend $30.40 on 4 CDs. Each CD costs the same amount and is on sale for 80% of the original price.

a. Write and solve an equation to find how much you spend on each CD. Let pp represent the price you pay for each CD.

Equation: ___ = 30.40

You spend $___ on each CD

b. The next day, the CDs are no longer one sale. You have $25. Will you be able to buy 3 more CDs?

c. Explain your reasoning for part (b)

Each Cd costs $___ at the regular price , so 3 CDs would cost $___

Answer 1

Part A

4 CD's cost $30.40, so one CD costs:

• 4p = $30.40
• p = $30.40/4
• p = $7.60

Part B

80% of the regular price is $7.60

If the regular price is r, we have:

• 0.8r = $7.60
• r = $7.60/0.8
• r = $9.5

3 CD's at regular price cost:

• $9.5*3 = $28.5

Since $25 < $28.5, we can't buy 3 more CD's.

Part C

• See Part B