An 8-ounce serving of soup contains 19 grams of carbohydrates. To the nearest gram, how many grams of carbohydrates does a 5-ounce serving of soup contain?

Question

anonymous · Answer

A. 10 grams
B. 11 grams
C. 12 grams 
D. 13 grams

Which one of these answers is correct?

bibby · Answer

Set up a proportion.$$\huge \frac{ 8oz }{ 19g } = \frac{ ? }{ ? }$$
what goes on the right hand side?

anonymous · Answer

I know i have to divide but i dont what to divide it with

bibby · Answer

In proportions, you want to keep the units consistent across the fractions.
That means ouncez on top and gramz on bottom

anonymous · Answer

So is it 1/2?

bibby · Answer

I'm talking about the question marks
$$\huge \frac{ 8oz }{ 19g } = \frac{ ? }{ ? }$$you can't divide anything before filling out the equation

anonymous · Answer

Oh, 19 and 5 right?

bibby · Answer

Reread the question.
8-ounce soup contains 19 grams of carbs.
how many does a 5-ounce serving of soup contain?

That means we don't know one of the numbers.

anonymous · Answer

oh okay

bibby · Answer

How much more direct can I make this?

8-ounce soup = 19 grams of carbs.
5-ounce soup = ? carbs