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ki77a [65]
2 years ago
14

Wynona buys some new boots that are priced $85.79. She gets successive discounts of 10% followed by 5% off on the boots. The pur

chase price of Wynona’s boots is _____ of the original price. a. 84% b. 84.5% c. 85% d. 85.5%
Mathematics
2 answers:
ddd [48]2 years ago
7 0

the correct answer is D

djverab [1.8K]2 years ago
4 0

we know that

the original price is \$85.79

The original price represent the  100\%

so

1) First discount of 10\%

Find the new price 1

\$85.79*(1-0.10)=\$77.21

2) Second successive  discount of 5\%

Find the new price 2

\$77.21*(1-0.05)=\$73.35

3)   Find by proportion the total percentage of discount

\frac{100}{85.79} \frac{\%}{\$} =\frac{x}{73.35} \frac{\%}{\$} \\ \\x=100*73.35/85.79 \\ \\x=85.5 \%

therefore

<u>the answer is the option D</u>

85.5 \%

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Step-by-step explanation:

* Lets explain how to solve the problem

<u><em>Part A</em></u>

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- Add 15 minutes to 6 am

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∵ The steamboat travels 300 miles in 12 hours

- Divide the distance by the time to find its rate

∵ 300 ÷ 12 = 25

- That means it travels 25 miles per hour

∴ The steamboat travels 25 miles per hour

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