Question

A box of cereal states that there are 72 calories in a 3/4-cup serving. What is the unit rate for calories 4 per cup? How many calories are there in 2 cups of the cereal?

Answer 1

EXPLANATION

Let's see the facts:

72 calories -------------> 3/4-cup serving

Unit rate equation:

$\text{Unit rate= }\frac{\Delta calories}{\Delta\text{cup}}$

Replacing terms:

$\text{Unit rate = }\frac{72}{\frac{3}{4}}=96\text{ calories/cup}$

The unit rate for calories per cup is equal to 4.

Calories in 2 cups of cereal :

= 96 calories/cup * 2 cups = 192 calories.