Question

Last month , he sold 50 cckens and 30 ducks fro $550. Ts month, he sold 44 cckens and 36 ducks for $532. How much does a ccken cost, and how much does a duck cost

Answer 1

let cost of one cckens= x
cost of duck = y
50x+30y= 550
=5x+3y=55 ( -1)

44x+36y=532
= 11x+9y=133 (2)
multiply equation 1 by 3 and then subtract it with 2 we get
4x=32
x=8
put x=8 in equation 1 we get
y=5
hence,cost of one cckens is $8
and cost of one duck is $5