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xeze [42]
3 years ago
14

Martina bought 4 CDs that were each the same price. Including sales tax, she paid a total of $70.40 . Each CD had a tax of $ 1.1

0 . What was the price of each CD before tax?
Mathematics
1 answer:
frez [133]3 years ago
8 0

1.10 \times 4 = 4.40

70.40 - 4.40 = 66

66 \div 4 = 16.5

Each CD was $16.50 before tax

Proof

total \: cost = 16.5(4) + 1.10(4)

total \: cost = 66 + 4.40

total \: cost = 70.40

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