Question

It cost the class $15 to make cookies for the

bake sale. How many cookies must they sell at

10¢ each to make a profit?

Answer 1

Answer: 151 cookies

150 cookies = $15 so selling 151 cookies gives a 10 cent profit ($15.10)

Answer 2

more than 150 cookies

Explanation:

Let the number of cookies = x.

Since they sell each cookie at 10 cents. each cookie sells for $0.10.

x number of cookies sell for 0.1x.

To turn a profit, the amount of sales must be greater than the cost.

0.1x > 15

x > 15/0.1

x > 150

Answer: They must sell more than 150 cookies