Question

Matia stepmother uses a 30% off coupon to buy the ingredients for huevos rancheros. She spends $28.

What is the regular price,r, of the ingredients before the discount? Enter the amount

r=

Answer 1

To find the regular price (r) of the ingredients before the discount, we can set up the equation based on the information given.

Let r be the regular price of the ingredients. The discount is 30%, which means Matia pays 70% of the regular price.

The equation can be expressed as:

\[
0.7r = 28
\]

To find r, we can divide both sides by 0.7:

\[
r = \frac{28}{0.7}
\]

Now, calculating that:

\[
r = 40
\]

So, the regular price of the ingredients before the discount is:

\[
r = 40
\]