It costs Sally 20 cents to make a cup of lemonade, and she sells each cup for 50 cents. She is using the following identity to calculate the amount of money she will make. 50n - 20n = n (50 - 20) n (50 - 20) = 30n If Sally sells 10 cups of lemonade, how much money will she make?

Question

Mathematics

Maia Arroyo

16 September, 05:10

It costs Sally 20 cents to make a cup of lemonade, and she sells each cup for 50 cents. She is using the following identity to calculate the amount of money she will make. 50n - 20n = n (50 - 20) n (50 - 20) = 30n If Sally sells 10 cups of lemonade, how much money will she make?

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Malia Bentley · Answer 1

She would make 3.00 dollars

50 (10) - 20 (10) = (10) (50 - 20)

500 - 200 = (10 * 30)

300 = 300

(10) (50 - 20) = 30 (10)

(10 * 30) = 300

300 = 300