Question

Three ounces of broiled ground beef contains 245 calories. Is this the number of calories directly or inversely proportional to the number of ounces? Explain your reasoning and write a formula for the proportion. How many calories are there in 4 ounces of broiled hamburger?

Answer 1

The number of calories are directly proportional to the number of ounces.

Explanation:

We can relate these values as:

Let x be the calories in 4 ounces of broiled hamburger.

`(3)/(245) =(4)/(x)`

=>
`3x=4*245`

=>
`3x=980`

Dividing by 3 on both sides;

x = 327 approx

We can see that 4 ounces contain 327 calories.

Per ounce will have
`327/4=81.75` calories.

As the quantity of hamburger increases, the calories count also increases.