Recent content by Eysz

I completely understand now! Thanks!

Then i should just substitute t=10 into the OR= (2/3)a + t( (-1/15)a + (2/5)b) since the answer must be in terms of b. That would make it 4b. Is it correct?

NOTE: Thread was moved to Homework forums and thus has no homework template... I managed to find (a) but i couldn't figure out (b). I think OR = OP + PR = (2/3)a + t( (-1/15)a + (2/5)b) but i don't know how to go further please guide or help me with this please. Thanks