A farmer raises cows and chickens. The farmer has a total of 25 animals. One day he counts the legs of all of his animals and counts a total of 64 legs.

Let x = number of cows.

Let y = number of chickens.

Which system of equations can be used to solve for the number of cows and the number of chickens on the farm?

A.

B.

C.

D.

Question

Mathematics

Charity Stuart

28 August, 14:29

A farmer raises cows and chickens. The farmer has a total of 25 animals. One day he counts the legs of all of his animals and counts a total of 64 legs.

Let x = number of cows.

Let y = number of chickens.

Which system of equations can be used to solve for the number of cows and the number of chickens on the farm?

A.

B.

C.

D.

+2

Answers (1)

Know the Answer?

Marina Orr · Answer 1

7 cows 18 chickens

Step-by-step explanation:

x=cows y=chickens

Two Equivilant Functions

25 = x+y

64=4x+2y

Isolate

y=25-x

Substitute

64=4x+2 (25-x)

64 = 4x+50-2x

14=2x

x=7

Substitute

25=7+y

y=18