SOLUTION: There are 30 legs in my back yard, but I'm counting dogs & kids. How many kids and dogs in my back yard?

Algebra ->  Signed-numbers -> SOLUTION: There are 30 legs in my back yard, but I'm counting dogs & kids. How many kids and dogs in my back yard?      Log On


   

Question 322694: There are 30 legs in my back yard, but I'm counting dogs & kids. How many kids and dogs in my back yard?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
4d+2k=30
There are multiple combinations possible as shown by the following table
4d-+-2k=30 legs
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7-----1=28=2=30
6-----3=24+6=30 "
5-----5=20+10=30 "
4-----7=16+14=30 "
3-----9=12+18=30 "
2----11=8+22=30 "
1----13=4+26=30 "