Question 227017
ANSWER: Ryan's weight is 130 pounds and Steve's is 65 pounds.

Let r stand for Ryan's weight and s stand for Steve's weight.


r=2s : Ryan's weight is twice as much as Steve's

r+s=195 : Ryan's weight plus Steve's weight equals 195 lbs


Substitute the r in the second equation with 2s...

{{{2s+s=195}}} which becomes {{{3s+195}}} so divide each side by 3 and get {{{s=65}}}. Therefore Steve's weight is 65 lbs.


Now substitute 65 for s in the first equation and you get {{{r=2(65)}}} which is {{{r=130}}}


Thus Ryan's weight is 130 lbs and Steve's is 65 lbs.