Question 421655

A women went to the store to purchase shoes during a "30% off" end-of summer discount sale. 
A. After the discount the price of one pair of shoes is $15.40. What was the price of the shoes before the discount

let the price  of the shoes before the discount be {{{x}}}


{{{x=(30/100)x +15.40}}}


{{{x=(0.30)x +15.40}}}

{{{x-(0.30)x =15.40}}}

{{{0.7x =15.40}}}

{{{x =15.40/0.70}}}

{{{x =22}}}.....your answer: the price  of the shoes before the discount


the discount was {{{(30/100)x =(30/100)22 = 0.3*22=6.60}}} dollars