Posted by Alison on Thursday, September 16, 2010 at 7:23pm.
How to solve: There are 40 chickens and cows in the farmyard. There are 100 legs in all. How many are cows and how many are chickens

Math  rachel, Thursday, September 16, 2010 at 7:24pm
chickens = 40/2
cows = 100/4 
Math  rachel, Thursday, September 16, 2010 at 7:26pm
sorry!!!
cows=x
chickens=40x
100=2(x)+4(40x) 
Math  rachel, Thursday, September 16, 2010 at 7:27pm
sorry again!
100=4(x)+2(40x)
is the right one.. 
Math  Anonymous, Wednesday, December 23, 2015 at 4:37am
100=4(Ã—)+2(40Ã—)