Posted by steph on Tuesday, October 19, 2010 at 7:00pm.
A certain molecule contains twice as many atoms of hydrogen as oxygen and one more atom of carbon than hydrogen. If there are 31 atoms altogether in the molecule. how many atoms of carbon are there?

MATH PLEASE HELP  MathMate, Wednesday, October 20, 2010 at 12:24am
So if oxygen is x, then hydrogen is 2x, and would be 2x+1.
x+2x+2x+1 = 31
5x+1=31
5x=30
x=6
Therefore there are 6 oxygen, 12 hydrogen, and 13 carbon atoms. 
MATH PLEASE HELP  M.lakshmi devi, Sunday, January 23, 2011 at 12:38am
maths is very simple u r kmugup formula only and then do sum