A bag holds 28 blue marbles and 49 red marbles. What is the ratio of red marbles to the total number of marbles in the bag?

Question

goldphenoix · Answer

How many red marbles are there?

anonymous · Answer

49

goldphenoix · Answer

Now how many marbles are there in the bag?

anonymous · Answer

Thats not a answer

anonymous · Answer

A.
	7 to 11
	
 
B.
	7 to 4
	
 
C.
	4 to 7
	
 
D.
	4 to 11

anonymous · Answer

C ?

goldphenoix · Answer

First, how many marbles are there in total?

anonymous · Answer

77

anonymous · Answer

you reduce add up all the marbles in the bag and make that the denominater. Make the red marbles the numerator, and reduce

goldphenoix · Answer

Alright. Now it would be 49:77 because ratio means "how much of one thing there is compared to another thing."

Ratio is like a fraction, except without a fraction bar.

So we have the number 49 and 77. 
Which number can go in perfectly in 49 and 77?

anonymous · Answer

11 times 7 

and 7 times 7
 
so 7 to 11

goldphenoix · Answer

Yes, good job. :)