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? (3 points) Responses $150 $150 $130 $130 $170 $170 $145

1 answer

To calculate the total amount of money Maria will make from selling the cookies, you can use the equation:

\[ y = 15x \]

where \( y \) is the total money made and \( x \) is the number of batches sold.

If Maria sells 10 batches of cookies, we can substitute \( x = 10 \) into the equation:

\[ y = 15(10) = 150 \]

So, Maria will make $150 from selling 10 batches of cookies.

However, since she has already spent $20 on baking supplies, the profit she will actually keep would be:

Profit = Total money made - Cost Profit = $150 - $20 = $130.

So, while she makes $150 from sales, her net earnings after covering her expenses will be $130.

Therefore, the correct response is \( 130 \).