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maths help..??????????????????

there was only 10% off the price of the dress. what did it cost before the sale..

the dress is now $270 and the % has been taken off.??? help.. how do u do it?

Answers (3)

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1kygeqbdaa profile image
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zjpvz5knaa profile image

$270 x 0.1 (thats 10% written as a decimal)= You saved 27 dollars.

So $270 + $27= $297

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ikiry71gaa profile image

let x = the price of the dress

x * (1 - .1) = 270

.9x = 270

x = $300

This is basically saying that 90%, which is 10% less than the full 100%, of the price of the dress is equal to $270