With the 20% off coupon, Alexis received a 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.
So, the original price was 75 dollars.
regular price ---- x
it said the 20% discount came to $15
well,
.2x = 15
x = 15/.2 = ......
Yes, could have been easily checked by taking 20% of it.
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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 ?
To find the regular price of the shoes before the 20% off coupon, you can use algebra.
Let's assume the regular price of the shoes is represented by the variable "x". We know that Alexis received a discount of $15, which means she paid the regular price minus the discount.
The discount is 20% of the regular price, which can be expressed as 20% * x or 0.2x (since percent means per hundred).
Therefore, the equation becomes:
x - 0.2x = $15
To solve the equation, we need to combine like terms:
0.8x = $15
Next, we can isolate x by dividing both sides of the equation by 0.8:
x = $15 / 0.8
Evaluating the division, we find that:
x = $18.75
So, the regular price of Alexis's shoes before the 20% off coupon was applied was $18.75.