### Home > MC2 > Chapter 9 > Lesson 9.1.1 > Problem 9-9

9-9.

Since 2 cups of lemonade is twice as much as 1 cup of lemonade, to find the price of 1 cup of lemonade, you must half the price of 2 cups of lemonade.

You can also solve the problem by setting a proportion equation like the one below, then solve for *x*.

To find the price of any amount of lemonade, in the equation above substitute ''1 cup of lemonade'' with the number of lemonades you are looking for.