Hey guys, I joined after struggling with a few problems for the past two days. I feel as if the answers are blantanly obvious and I'm just missing the simplest and most important bit(s). 1. The problem statement, all variables and given/known data From the set of equations: p=3q pr=qs (1/2)pr2 + (1/2)qs2 = (1/2)qt2 involving the unknowns p, q, r, s, and t, find the value of the ratio t to r. 2. Relevant equations above 3. The attempt at a solution The first thing I did was rearrange the top two equations so I can eliminate certain variables from the 3rd equation. My possible rearrangements are: p=3q p=(qs)/r q=p/3 q=(pr)/s r=(qs)/p s=(pr)/q After a few trial and error replacements I keep getting complicated equations that are gonna take a while to type out. Can someone give me a nudge in the right direction? I can't even wrap my head around this. Also, how can I make this text actually look like an equation like I've seen in other posts? I'll edit it if someone can tell me how to change it, and I'll add the complicated mess I end up with in the end.