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The usual price of a dress was $125. During a sale Mary bought it at a discount of 20%.

(a) How much did Mary pay for the dress? If she should that dress with the profit of 20%, (b) what is her selling price?
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The usual price of a dress was 125 During a sale Mary bought it at a discount of 20 a How much did Mary pay for the dress If she should that dress with the prof class=

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Answer:

(a) $100

(b) $120

Step-by-step explanation:

Part (a):

[tex]$125-(.2*125)[/tex]    | Original price minus .2 of the original price, or 20% of the price.

[tex]125-(25)\\100[/tex]

Mary paid $100 for the dress.

Part (b):

Now she wants to sell the dress for a profit of 20%. To set this up, take the price she paid for the dress ($100) and add twenty percent of that price to the 100 dollars. In other words,

[tex]100+(.2*100)\\100+(20)\\120[/tex]

Mary's selling price is $120.