7c+3d = 4m
1m = 1c+1d
So,
4m = 4c+4d
7c+3d = 4c+4d
3c = d
Seven cats and 3 dogs weigh as much as 4 monkeys. One monkey weighs as much as 1 cat and 1 dog. How many cats weigh as much as 1 dog?
2 answers
peepee
1 answer