Hello. I see you edited your post.
It is 150 miles between Texas and Tolendo bay. you are driving 45 miles every hour. You wake up at 4am... what time will it be when you get there?
We can use proportions to figure this out.
45 miles / 1h = 150 miles / x
Lets do some simple algebra, and cross-multiply:
45 * x = 45x
150 * 1h = 150h
so we get 45x = 150h
now to get x by it's self, we do the oppeset of multiplication; we divide 45x by 45 and we do the same to the other side, to balance the equation. We divide 150 by 45
45x/45 = 150/45
x = 150/45
x = 10/3 or appr 3.333 hours
now if you wake up at 4am what time will it be in + 10/3 hours?