SOLUTION: Please explain how to do this whith ratios.; my problem is this:attendence at the concert was 480. the ratio from adults to kids was 5/3. how many kids were there?

Algebra ->  Proportions  -> Lessons -> SOLUTION: Please explain how to do this whith ratios.; my problem is this:attendence at the concert was 480. the ratio from adults to kids was 5/3. how many kids were there?      Log On


   

Question 117310: Please explain how to do this whith ratios.; my problem is this:attendence at the concert was 480. the ratio from adults to kids was 5/3. how many kids were there?
Found 2 solutions by Fombitz, edjones:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
When you say the ratio was 5:3 adults to kids, that means that out of 8 (5+3), 5 were adults and 3 were students.
You can then set up a ratio.
If 3 out of 8 are kids, then the total number of kids, X, to the total attendance is in a ratio.
3%2F8=X%2F480
%283%2F8%29%2A480=X
X=180
There were 180 kids (and 300 adults) in attendance.

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
5/3=adults/kids
5+3=8
5/8 were adults and 3/8 were kids. Once you understand this, ratios get easier.
x/480=3/8 Proportion
480x/480=480*3/8
x=180 kids
.
Ed