Rabbits 7948

Hens and rabbits, 22 heads and 62 feet, run around the garden. How many?

Correct answer:

k =  9
s =  13

Step-by-step explanation:


22 = s+k
2s+4k = 62

22 = s+k
2·s+4·k = 62

k+s = 22
4k+2s = 62

Pivot: Row 1 ↔ Row 2
4k+2s = 62
k+s = 22

Row 2 - 1/4 · Row 1 → Row 2
4k+2s = 62
0.5s = 6.5


s = 6.5/0.5 = 13
k = 62-2s/4 = 62-2 · 13/4 = 9

k = 9
s = 13

Our linear equations calculator calculates it.



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