please answer it
I'm kinda confused
I have to buy 100 animals, I have to spend exactly 100 dollars, I have to get at least 1 of each. horses(X) = 10 bucks. cows(Y) = 1 buck. chickens(Z) = 50 cents
4 answers
x+y+z = 100
so z = 100 - x - y
10 x + y + .5 z = 100
10 x + y + .5(100 - x - y) = 100
9.5 x + .5 y + 50 = 100
9.5 x + .5 y = 50
well x is 5 or less but must be even to avoid a half horse so try 4
4 horses is $40
so if we get 4 horses,
y + z = 96
y + .5 z = 60
--------------------
.5 z = 36
z = 72 then y = 24
==================
check
4 horses, 24 cows , 72 chickens
total 100 yes
4 * 10 + 24 * 1 + 72 * .5 = 40 + 24 + 36 = 100 check, whew !
so z = 100 - x - y
10 x + y + .5 z = 100
10 x + y + .5(100 - x - y) = 100
9.5 x + .5 y + 50 = 100
9.5 x + .5 y = 50
well x is 5 or less but must be even to avoid a half horse so try 4
4 horses is $40
so if we get 4 horses,
y + z = 96
y + .5 z = 60
--------------------
.5 z = 36
z = 72 then y = 24
==================
check
4 horses, 24 cows , 72 chickens
total 100 yes
4 * 10 + 24 * 1 + 72 * .5 = 40 + 24 + 36 = 100 check, whew !
Thank you so much
I really appreciate it
😃
I really appreciate it
😃
You are welcome.
1 answer