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There are several chickens and rabbits in a cage (with no other types of animals). There are 72 heads and 200 feet inside the cage. How many chickens are there, and how many rabbits?
Read Solution (Total 5)
-
- x=chickens
y=rabbits
2x+4y=200
x+y=72
y=72-x
2x+288-4x=200
x=44 chickens
y=28 rabbits - 10 years agoHelpfull: Yes(8) No(0)
- If all 72 animals had two legs there would be 144 feet, so the other 56 feet must belong to the rabbits. Two extra feet per rabbit, means 28 rabbits.
- 8 years agoHelpfull: Yes(3) No(0)
- ans- 44 chickens
Exp- x*2+(72-x)*4=200 - 11 years agoHelpfull: Yes(0) No(0)
- There r 44 chickens & 28 rabits
- 8 years agoHelpfull: Yes(0) No(0)
- Let c be the number of chickens, and r be the number of rabbits.
r + c = 72
4r + 2c = 200
To solve the equations, we multiply the first by two, then subtract the second.
2r + 2c = 144
2r = 56
r = 28
c = 44
So there are 44 chickens and 28 rabbits in the cage. - 6 years agoHelpfull: Yes(0) No(0)
CTS Other Question
Two trains travel toward each other on the same track, beginning 100 miles apart. One train travels at 40 miles per hour; the other travels at 60 miles an hour. A bird starts flight at the same location as the faster train, flying at a speed of 90 miles per hour. When it reaches the slower train, it turns around, flying the other direction at the same speed. When it reaches the faster train again, it turns around -- and so on. When the trains collide?
Choose the correct order
1) you can take
2) you can't take
3) the boy
4) the village
5) out of the village
6) out of the boy
7) but
A) 1,3,5,7,2,4,6 B) 1,5,2,6,3,7,4 C) 1,6,5,3,7,2,4 D) 1,7,2,4,3,5,6