Grandmother

Michael's grandmother raises chickens and rabbits. Michael calculated that they have a total of 20 heads and 64 legs. How many animals does grandma keep?

Correct answer:

s =  8
k =  12

Step-by-step explanation:

s+k=20 2s+4k=64  s+k=20 2 s+4 k=64  k+s=20 4k+2s=64  Pivot:Row1Row2 4k+2s=64 k+s=20  Row241 Row1Row2 4k+2s=64 0.5s=4  s=0.54=8 k=4642s=4642 8=12  k=12 s=8



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