Question

A box of cereal states that there are 84 calories in a 3/4-cup serving. What is the unit rate for calories per cup? How many calories are there in 2 cups of the cereal? help me plsss​

Answer 1

Answer:

112 calories per cup

224 calories in 2 cups

Step-by-step explanation:

We can write a proportion to solve

84 calories          x calories  

------------------ = ----------------

3/4 cup              1 cup

Using cross products

84 * 1 = x * 3/4

84 = 3/4x

Multiply each side by 4/3

84 * 4/3 = 3/4 x * 4/3

112 = x

There are 112 calories per cup

To determine the number of calories in 2 cups, multiply by 2

112 *2 = 224

224 calories in 2 cups