Maria is organizing a charity bake sale. She has already spent $20 on baking supplies and plans to sell each batch of cookies for $15. Let x represent the number of batches of cookies Maria sells, and let y represent the total amount of money she makes from selling the cookies. If Maria sells 10 batches of cookies, how much money will she make?
A) $145
B) $170
C) $130
D) $150
2 answers
?
To find the total money Maria makes from selling the cookies, we can use the formula for the total earnings \( y \):
\[ y = 15x - 20 \]
where:
- \( 15x \) is the total revenue from selling \( x \) batches of cookies at $15 each,
- and \( 20 \) is the amount she spent on baking supplies.
If Maria sells \( x = 10 \) batches of cookies, we substitute 10 into the equation:
\[ y = 15(10) - 20 \]
Calculating that gives:
\[ y = 150 - 20 = 130 \]
Thus, if Maria sells 10 batches of cookies, she will make a total of $130.
The answer is C) $130.
1 answer