Solve the formula: c/2 = A/r solve for r. Any help would be appreciated.
G Guest Guest Jul 22, 2005 #1 Solve the formula: c/2 = A/r solve for r. Any help would be appreciated.
pka Elite Member Joined Jan 29, 2005 Messages 11,976 Jul 22, 2005 #2 If 12/2 = 18/3, then does 3=(18*2)/12?
D Denis Senior Member Joined Feb 17, 2004 Messages 1,707 Jul 22, 2005 #4 if a/b = c/d, then ad = bc : crisscross multiplication so a = bc/d or d = bc/a or b = ad/c or c = ad/b try it with pka's 12/2 = 18/3: 12 * 3 = 18 * 2, right? and 12 = 18 * 2 / 3, 3 = 18 * 2 / 12, 18 = 12 * 3 /2, 2 = 12 * 3 / 18; ok? your problem will work the same.
if a/b = c/d, then ad = bc : crisscross multiplication so a = bc/d or d = bc/a or b = ad/c or c = ad/b try it with pka's 12/2 = 18/3: 12 * 3 = 18 * 2, right? and 12 = 18 * 2 / 3, 3 = 18 * 2 / 12, 18 = 12 * 3 /2, 2 = 12 * 3 / 18; ok? your problem will work the same.
stapel Super Moderator Staff member Joined Feb 4, 2004 Messages 16,582 Jul 23, 2005 #5 Try here. Eliz.