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
The answer to this question is C, I can explain it if you would like.
Answer:
C
Step-by-step explanation:
Based on the other answers. C is the odd one out.
Answer:
a) 0.001 meters
b) 1 millimeter because 1 mm = 0.001 meters as well
Step-by-step explanation: