# mathematics

Lydia bought a shirt at 20% off its retail price of \$40. She paid 5% tax on the price after the discount. How much did Lydia pay for the shirt?

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3. 👁 982
1. 40 * (1 - .20) * (1 + .05)

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2. What is (.8)(40)(1.05) ??

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👨‍🏫
Reiny
3. 0.8*40 = \$32 = cost before tax.
Total cost = 32 + 0.05*32 =

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2. 👎 2
4. 2.4444325678654321

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2. 👎 1

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