Question........

Question

There are some birds and squirrels on the tree. These

animals have a total of 45 heads and 120 legs. How many

birds and squirrels are there respectively?

Answer 1

Let x = number of birds and y = number of squirrels

x + y = 45 (total number of heads)

2x + 4y = 120 (total number of legs)

2x + 4(45 - x) = 120

Solve for x and y.