Question

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Two stores sell CDs in packages, as shown in the table below.


CD Prices at Store A
Number of CDs in Package
1
12
20
45
Cost
$0.70
$8.40
?
$31.50


CD Prices at Store B
Number of CDs in Package
1
20
30
65
Cost
$0.60
?
$18.00
$39.00

If the rate at each store is constant, which statement correctly compares the cost of a package containing 20 CDs?

Answer 1

Hello.

In order to find this out, you have to multiply the amount of 1 CD and the amount of CDs.

In this case, we are finding out the amount of 20 CDs for each group.

Group A: Multiply 20 by 0.70;    20 x 0.70 = 14

The cost of 20 CDs for Group A is $14.00

Group B: Multiply 20 by 0.60;   20 x 0.60 = 12

The cost of 20 CDs for Group B is $12.00

Answer 2

Answer:

price of CDs at store A = 14 $

price of CDs at store B = 12 $

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