Asked by we
a family has 3 children the eldest is 8 years older than the middle child and the youngest is 12 years younger than the eldest child of the total of their age is 88 how old is each child?
Answers
Answered by
Steve
If their ages are a < b < c then
c = b+8
a = c-12
a+b+c = 88
...
c = b+8
a = c-12
a+b+c = 88
...
Answered by
bobpursley
E-8=M
Y+12=E
E+Y+M=88
putting it in standard form..
E-M+0y=8
E-oM-y=12
E+M+Y=88
add the last two
2E+M=100 add to the first equation
3E=108
E=36
M=28
Y=24
Y+12=E
E+Y+M=88
putting it in standard form..
E-M+0y=8
E-oM-y=12
E+M+Y=88
add the last two
2E+M=100 add to the first equation
3E=108
E=36
M=28
Y=24
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