in a barnyard full of cows and chickens, there are 30 more legs than heads. If the ratio of cows to chickens is 4 to 3, how many cows are in the barnyard?
2006-09-06 13:31:26 · 5 answers · asked by keandra b 1 in Science & Mathematics ➔ Mathematics
8 cows, 6 chickens
2006-09-06 13:36:38 · answer #1 · answered by freebird 6 · 1⤊ 0⤋
8 cows in the barnyard, 6 chickens.
2006-09-06 13:39:26 · answer #2 · answered by tampasmiles 3 · 0⤊ 0⤋
i replied similar variety of question earlier in ......forgot enable I have chickens x variety & y variety of cows now cow has 4 legs & poultry has 2 legs so construct the equation 2x+4y=seventy 4 so x+2y=37 ....................................(a million) x+y=30.............................(2) now from 2 I have (x+y)+y=37 30+y=37 y=7 so x =30-7 =23 so I have 23 chickens & 7 cows ,(no longer the farmer as he offered those to me)
2016-10-15 23:19:02 · answer #3 · answered by venturino 4 · 0⤊ 0⤋
8 cows.
2006-09-06 13:42:12 · answer #4 · answered by Anonymous · 0⤊ 0⤋
(4*a*4+3*a*2)-(4*a+3*a)=30
a=2
#Cow=4*a=8
#chicken=3*a=6
2006-09-06 13:39:29 · answer #5 · answered by Persistence0 2 · 0⤊ 0⤋