Asap with the 20% off coupon, alexis receive the discount of $15 on her shoes. what was the regular price of her shoes before the 20% off coupon was applied ? justify your answer using equations, models, and or words to explain your mathematical reasoning.

To get the the cost of how much Alexis is paying we first have to find the original cost and then subtract the $15 which is equal to 20% of the original number. 

To find the original price you take the $15 and divide it by .20 

15÷.20= 75 

To get the original price of a percentage you do the opposite of if you were trying to find the % for example :

75 x .20 = 15
15 ÷ .20 =75 

The original price is $75

75 - 15 = 60 

With the discount it is $60

I hope it helped 

Well, because we know that he got $15 off, and it was a 20% coupon, we turn the 20% into a 5 instead of .5. We do this so we can multiply to find the total.

$15 x 5 = 75

If you type into your calculator $75 - 20%, you will get 60 which is 15 less than 75.

So the total is $75

Have a super day!

The answer to your question is 1/9

The linear equation is: y=ax+b