Did some ratio problems. Did ~10 for ~20 minutes. Got none wrong.
I did six speed/rates problems from the textbook. I got all of them right.
This was helpful in working with the problems. I realized partially why I probably had trouble at the time I initially did this was that it was too hard to do mental math with and I was too lazy to write it out. Only issue I ran into was the second problem I referenced.
I did do a practice problem similar before re-attempting this one and I think I understand what’s going on in the problem, but I had trouble setting up an equation here. Can I make an equation here? I guess I’d try getting their positions equal. I conceptually understand that from how it was explained in the textbook. I don’t know how to express it as an equation.
Here’s my working for the other problem I referenced.