Answer:
A man has a body mass of mkg he is 30kg heavier than each of his children. Express the body mass of each child in terms of m if the mass of the father and children sum up to 156kg find the mass of the father
The mass of the father would be 72 kg.
A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
A man has a body mass of m kg. He is 30 kg heavier than each of his twin children.
Let the mass of first child be x
x = m - 30
Let the mass of second child be y
y = m - 30
The total mass of the two children and a father would be
m + x + y = 156
Substitute;
m + m - 30+ m - 30= 156
3m - 60 = 156
3m = 156 + 60
m = 216 / 3
m = 72.
So the mass of the father would be 72 kg.
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