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Anuta_ua [19.1K]
2 years ago
8

A student received a coupon for 11% off the total purchase price at a clothing store. Let z be the

Mathematics
1 answer:
Gnom [1K]2 years ago
6 0

Answer:   0.89z

Think of it like 100% - 11% = 89%

You save 11%, so you need to pay the remaining 89%

Taking 89% of z then leads to 0.89z

So that's why z - 0.11z = 0.89z

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