SOLUTION: The sum of three numbers is 210. the first number is three times the third and the second is fifteen more than the third. what are the three numbers?

Algebra ->  Customizable Word Problem Solvers  -> Numbers -> SOLUTION: The sum of three numbers is 210. the first number is three times the third and the second is fifteen more than the third. what are the three numbers?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 990968: The sum of three numbers is 210. the first number is three times the third and the second is fifteen more than the third. what are the three numbers?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A%2BB%2BC=210
,
,
,
A=3C
,
,
,
B=15%2BC
,
,
,
Substituting,
3C%2B%2815%2BC%29%2BC=210
5C%2B15=210
5C=195
C=39
So then,
A=3%2839%29=117
and
B=15%2B39=54