SOLUTION: susan,ravi, and dale sent a total of 110 text messages over their cell phones during the weekend. ravi sent 2 times as many messages as dale. dale 10 fewer messages than susan. h

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: susan,ravi, and dale sent a total of 110 text messages over their cell phones during the weekend. ravi sent 2 times as many messages as dale. dale 10 fewer messages than susan. h      Log On


   

Question 1083390: susan,ravi, and dale sent a total of 110 text messages over their cell phones during the weekend. ravi sent 2 times as many messages as dale. dale 10 fewer messages than susan. how many messages did they each send
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.S%2BR%2BD=110
2.R=2D
3.D=S-10
From 3,
S=D%2B10
Substituting into 1,
%28D%2B10%29%2B%282D%29%2BD=110
4D%2B10=110
4D=100
Solve for D then go back and solve for R and S.