Mathematics: Adress that costs x dollars is on sale for 30% off. write an expression to represent the sale price, in dollars, of the dress.

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Adress that costs x dollars is on sale for 30% off.

trenton16

12.01.2022

The expression to represent the sale price, in dollars, of the dress is x - 0.3x dollars

Solution:

Given that dress that costs "x" dollars is on sale for 30% off

To find: expression to represent the sale price, in dollars, of the dress

Let the original price of dress is "x"

It is on sale for 30% offer. Which means 30 % of "x" is offer price

Sales price means the price of dress after offer

So the sales price is written as original price - offer price

Sales price = original price - offer price

Sales price = x - 30 % of x

On simplification we get,

$\text {Sales price }=x-\frac{30}{100} \times x=x-0.3 x$

Thus the sales price of dress is x - 0.3x dollars

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