maths
posted by thommini .
Two cyclists start biking from a trail's start 3 hours apart. The second cyclist travels at 10 miles per hour and starts 3 hours after the first cyclist who is traveling at 6 miles per hour. How much time will pass before the second cyclist catches up with the first from the time
the second cyclist started biking?
( This question is very hard, please help me, please help with the working. thanks )

When the second cyclist starts, they are 18 miles apart. (3 hours times the speed of the first biker).
After that, the distance between the bikers shrinks at a rate of 10  6 = 4 miles/hr.
The distance between bikers becomes zero after 18/4 = 4.5 hours. That is when the latestarting biker [passes the other. 
OR
let the time taken from when the second rider leaves till they meet be t hours
10t = 6t + 18 , (their distances are the same)
4t = 18
t = 4.5 
thanks a lot !!
Respond to this Question
Similar Questions

bob help
how do u come up w/the answer? Two cyclists start biking from a trail's start 3 hours apart. The second cyclist travels at 10 miles per hour and starts 3 hours after the first cyclist who is traveling at 6 miles per hour. How much 
Math word problem
Two cyclists start biking from a trail's start 3 hours apart. The second cyclist travels at 10 miles per hour and starts 3 hours after the first cyclist eho is traveling at 6 miles per hour. How much time will pass before the second … 
Math
Two cars start from the same place and travel in the same direction. If one car travels at 60 miles per hour and the other travels at 45 miles per hour, in how many hours will they be 60 miles apart? 
algebra
Two cyclists start biking from a trail's start 3 hours apart. The second cyclist travels at 10 miles per hour and starts 3 hours after the first cyclist who is traveling at 6 miles per hour. How much time will pass before the second … 
Algebra
Two trains leave Raleigh at the same time, one traveling north, the other south. The first train travels at 50 miles per hour and second at 60 miles per hour. In how many hours will the trains be 275 miles apart? 
10th grade
Two ships leave a harbor at the same time, traveling on courses that have an angle of 140 degrees between them. If the first ship travels at 26 miles per hour and the second ship travels at 34 miles per hour, how far apart are the … 
geometry
Two ships leave a harbor at the same time, traveling on courses that have an angle of 140 degrees between them. If the first ship travels at 26 miles per hour and the second ship travels at 34 miles per hour, how far apart are the … 
Algebra
2 cyclists travel opposite on circular trail that is 5 miles long. one cyclist travels 12 miles per hour, the other travels 18 miles per hour. How long before they meet? 
algebra word problem
A long distance runner starts at the beginning of a trail and runs at a rate of 5 miles per hour. One hour later, a cyclist starts at the beginning of the trail and travels at a rate of 13 miles per hour. What is the amount of time … 
Trigonometry
Two ships leave a harbor entrance at the same time. The first ship is traveling at a constant 10 miles per hour, while the second is traveling at a constant 22 miles per hour. If the angle between their courses is 100°, how far apart …