David C. answered 11/13/14
Tutor
5
(1)
Accounting, Taxation, Math, GED, Cantonese
Let me try to help you out.
Let X= number of cups Jane started with.
If 85% of the lemonade had been consumed, then what remains is 15%, because 100%-85%=15%.
The question said only 3 cups remained, so 3 is equal to this remaining 15%.
X(15%)=3
X(0.15)=3
divide 3 by 0.15 and you get X=20
So we figured out Jane started with 20 cups of lemonade.
Cidney F.
11/13/14