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Maksim231197 [3]
3 years ago
5

A shoe store is selling a pair of shoes for $60 that has been discounted by 20%. What was the original selling price? Show your

work.
Mathematics
1 answer:
anzhelika [568]3 years ago
8 0

Answer:

The original selling price was \$75

Step-by-step explanation:

Let

x-----> the original selling price

we know that

100\%-20\%=80\%=80/100=0.80

so

0.80(x)=60 -----> equation that represent the situation

solve for x

Divide by 0.80 both sides

x=60/0.80=\$75

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70 decreased by 13% =
Pie
If you have a calculator: 
<span>1) To find 1%, divide by 100 (70 / 100 = 0.7) </span>

<span>2) Then, multiply by the % you need (0.7 x 13 = 9.1) </span>

<span>Therefore 70 - 9.1 = 60.9 </span>

<span>If you don't have a calculator: </span>
<span>1) Find 50%, 10%, 5%, and 1%. With these, you can make any % you need. </span>
<span>50% = X / 2 (= 35) </span>
<span>10% = X / 10 (= 7) </span>
<span>5% = first, do 10%, then divide that by 2 (= 3.5) </span>
<span>1% = X / 100 (= 0.7) </span>
<span>Where X is the number you want to work out % for </span>

<span>2) Add those % up to get the amount you want </span>
<span>10% + 1% + 1% +1% = 13% </span>
<span>7 + 0.7 + 0.7 + 0.7 = 9.1 </span>

<span>Therefore 70 - 9.1 = 60.9
Hope that helps :)</span>
7 0
3 years ago
Macy’s is having a sale in which all jeans at $30. The sales tax is 8%. If John buys n pairs of jeans during this sale, the tota
Amiraneli [1.4K]

This expression is correct. It shows the price John pays for the jeans on the left side of the + symbol (30n), and the amount of tax he has to pay on the right side of the symbol (0.08(30n)).

Hope this helps!

3 0
2 years ago
Need 78 pieces of wood 29 cm long. Boards are 6 m long. How many boards are needed?
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I believe the answer is 4 because 6m/29= 20.6897 and so then you do 20.6897 x 3= 62.0691. So 3 is too small so do 20.6897x 4= <span>82.7588. 82 >78 so the answer is that you need 4 boards.
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3 years ago
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Korolek [52]

Answer:

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Hope that helps! :D

4 0
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Read 2 more answers
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