Question

There are 110 calories in 8 ounces of gape juice. How many calories are in 10 ounces of grape juice?

Answer 1

In order to solve this problem, we need to set up a proportion.  I am setting the amount of calories in 10 ounces of grape juice equal to x.

$\frac{110}{8} = \frac{x}{10}$

We begin to solve this by cross multiplying.

8x = 1,100

To finish the problem, we divide both sides by 8.

x = 137.5, so the 10 ounce glass of grape juice will have 137.5 calories.