99 points! !
how long does it take a car to travel 200 mi at a constant speed of 25 mi/h?
4 h
8 h
10 h
12 h

All you have to do is divide 200 by 25.

8 h. is your answer.

I hope this helps! :)

25 mi/h means 25 miles per hour, which means it would take you 1 hour to go 25 miles.
This can be represented in a ratio of hours to miles.
hours:miles
1:25
If miles are 200, then the ratio would be x:200
Divide 200 by 25 to see how much the miles were multiplied by to get 25, then multiply 1 (hours) by that number to get the answer, since both sides must have the same done to them.
200 / 25 = 8
So 25 • 8 = 200, meaning 1 • 8 = 8, and the answer is 8 hours.
Original ratio: 1 hour:25 miles
New ratio: 8 hours:200 miles