a box of cereal states that there are 90 calories in a 3/4-cup serving. how many calories are there in 4 cups of the cereal?

Question

90 calories for a 3/4 cup serving. how many calories in 4 cups 

Answer 1

Lets call the calories in one cup 'x'

so (3/4)x=90

Solving for x:

x=(90)/(3/4)

x=120

Now for 4 cups:

(4)(120)=?

480 calories in 4 cups of cereal