Question

A farmer has cows and ducks on a truck. These are the only creatures on the truck. Altogether, there are 15 heads and 44 legs on the truck. How many cows are on the truck? How many ducks?

can somebody not only helpme with the awnser but like drawa model out so i can understand..?

Answer 1

fan & medal rewarded..just plzz help...?

Answer 2

let c = number of cows and let d = number of ducks

c + d = 15 (there are 15 heads and each animal has one head)
4c+2d=44 (each cow has 4 legs and each duck has 2 legs)

this is a system of linear eauations. you can use elimination or substitution to solve

Answer 3

"equations"

Answer 4

okay thankyou.! but how would i model this...?

Answer 5

you could use lines to model. the solution would be the point of intersection of the two lines.

Answer 6

kay thank you..!

Answer 7

kay thank you..!

Answer 8

does that make sense?

Answer 9

yes