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aliina [53]
3 years ago
5

One day, a person went to a horse racing area. instead of counting the number of humans and horses, he counted 72 heads and 192

legs. how many humans and horses were there?
Mathematics
1 answer:
Lunna [17]3 years ago
8 0
H-human a-horse
h+a= 72
2h+4a=192

then do h=72-a
substitute that into the second equation
2(72-a)+4a=192

multiple out
144-2a+4a=192
2a=48
a=24
substitute a into the first equation
h+24=72
h=48
humans- 48
horses- 24
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Step-by-step explanation:

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