1 big mouse = 3 cakes 3 baby mice = 1 cake 1 baby mouse = 1/3 cake Suppose x = the amount of big mice y=the amount of baby mice 100 mice —> x+y=100 100 cakes —> 3x+1/3 y=100 Then solve it like how you solve linear equation with 2 variables 3x+3y=300 3x+1/3 y=100 ——————— - 8/3 y=200 y=75 x+75=100 x=25 Hence,there are total of 25 big mice and 75 baby mouse
