Homework Help: MATH

Posted by NINA on Monday, February 20, 2012 at 2:35pm.

Carolyn and Kim are selling lemonade this summer.
 It costs $0.10 to make each cup of lemonade.
 They are going to sell each cup of lemonade for $0.25.

What is the least number of cups of lemonade they need to sell in
order to collect $10.00 more than they spend? Show or explain your
work.

MATH - Steve, Monday, February 20, 2012 at 6:42pm
for x cups of drink,

cost = .1x
revenue = .25x

.25x = .1x + 10
.15x = 10
x = 66.7 or x=67
MATH - Jose, Wednesday, February 22, 2012 at 1:46pm
So the answer is X=67

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