2006-08-23 00:49:46 · 12 answers · asked by Anonymous in Education & Reference ➔ Primary & Secondary Education
21 cows and 24 ducks
Let X be the number of cows, and let Y be the number of ducks.
The cow has 2 eyes and the duck has 2 eyes too.
Then 2X+2Y=90
The cow has 4 legs and the duch has 2 legs.
Then 4X+2Y=132
By solving this system of equations you'll find the answer
{2X+2Y=90
{4X+2Y=132
2006-08-23 01:01:08 · answer #1 · answered by Anonymous · 0⤊ 0⤋
21 cows and 24 ducks
2006-08-23 07:57:42 · answer #2 · answered by giri m 1 · 0⤊ 0⤋
21 cows, 24 ducks
2006-08-23 07:52:45 · answer #3 · answered by maguire1202 4 · 0⤊ 0⤋
watson-- 21 cows and 24 ducks
2006-08-23 07:58:20 · answer #4 · answered by inQuizitor 1 · 0⤊ 0⤋
cows are 21 numbers.
ducks are 24 numbers
2006-08-23 07:56:51 · answer #5 · answered by linesh r 2 · 0⤊ 0⤋
There would be 21 cows and 24 ducks. Are you "mooooved" "beak-cause" so many people sent in answers?
2006-08-23 08:10:28 · answer #6 · answered by lady jane 2 · 0⤊ 0⤋
21 cows and 24 ducks
21*4legs=84legs
24*2legs=48legs
total legs = 132
21*2eyes=42eyes
24*2eyes=48eyes
total eyes = 90
2006-08-23 07:58:17 · answer #7 · answered by Remo 2 · 0⤊ 0⤋
21 cows
24 ducks
2006-08-23 08:48:22 · answer #8 · answered by prabhaker123 1 · 0⤊ 0⤋
Ducks : 24
Cows : 21
2006-08-23 07:58:04 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Enough for a lot of steak & egg breakfasts
2006-08-23 07:54:15 · answer #10 · answered by Anonymous · 1⤊ 0⤋