Question

If Z is the midpoint of what are x, RZ, and RT?

Answer 1

Since Z is the midpoint you can set those expressions equal to each other to find x. Substitute x back into the expression to figure out the length of RT.
Then divide RT by 2 to find the value for RZ and RT, they should be the same length.

Answer 2

I know I sound like an idiot. But how do you divide letters? @ajspeller

Answer 3

First solve 8x-10 = 150

Answer 4

Add 10 to both sides and then divide by 8. This tell you the value for x.

Answer 5

Substitute that x value in 8x-10. This gives you the length of RZ.

Answer 6

You see the ZT is 150. Add what you found RZ to be to ZT to get RT. Then you are done.

Answer 7

Thanks man

Answer 8

Thanks @ajspeller