SOLUTION: The average earning of peter, james, john is 2200.If peter earns twice as James and three times as john, how much does each earn?

Algebra ->  Customizable Word Problem Solvers  -> Finance -> SOLUTION: The average earning of peter, james, john is 2200.If peter earns twice as James and three times as john, how much does each earn?       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1041645: The average earning of peter, james, john is 2200.If peter earns twice as James and three times as john, how much does each earn?

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
%28X%2BY%2BZ%29%2F3=2200
X%2BY%2BZ=6600
.
.
X=2Y
X=3Z
So then,
Y=X%2F2
and
Z=X%2F3
Substituting,
X%2BX%2F2%2BX%2F3=6600
%286%2F6%29X%2B%283%2F6%29X%2B%282%2F6%29X=6600
%2811%2F6%29X=6600
X=3600 <--- Peter
Then,
Y=3600%2F2=1800 <--- James
Z=3600%2F3=1200 <--- John