five


 * Team 7

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1 ** In the beginning, I thought this problem was difficult. As I looked into it more, I kind of figured out a way I think works. I knew that the 2 horses were 15 miles apart. I also knew that in 1 hour, the horses would meet because 1 horse travels at 7mph and the other at 8mph which together is 15 miles in one hour. I figured that since the fly flew 25mph, you would have to find how long it takes the fly to fly 15mph. I set up a proportion that looked like 25 over 60 is equal to 15 over x. The answer was 36. I knew that this meant it took 36 minutes to fly 15 miles. I then had to figure out how many miles the fly would fly in the remaining amount of 24 minutes. I set up a proportion that looked like 15 over 36 is equal to x over 24. I got 10. I then added that to the 15 to get 25 miles. After doing all of this work, I realized that all you really had to do is find how long it takes for the fly to fly for 1 hour which was 25 miles. I feel that my answer is correct. Does anyone have a different answer? || ** Team member 2 ** First I had to found out how long it would take for the horses to meet at 15 miles apart. I knew they were 15 miles apart and I knew one was traveling at 7 mph and the other at 8mph, so i set up this equation.
 * ** Team member

7x + 8x =15 15x = 15 15x/15 = 15/15 x = 1

I now knew that it took 1 hour for the horses to meet. I also knew that the horse fly was flying at 25mph, so in 1 hour (when the horses meet) the horse fly would have flown 25 miles. || ** Team member 3 ** I agree with my other team members. While I was looking at the problem, I realized that I had to find out how far the fly has flown back and forth until the horses meet. I also found out that I had to use the equation Rate x Time= Distance. I made a table. ||

I then made the equation 7x+8x=15. They are supposed to be equal because it says when the horses MEET. Also, it is equal to 15 because that was the amount of miles the two horses were apart. If solving the equation, x would equal 1. I now knew in 1 hour, the horses would meet. Now I had to find out how far the flies would of flown before the horses met. Its said a horsefly left one horse at 25mph. Since I know that the horse is an hour apart. The fly must of flown 25 miles. An easier way of saying it is 25Miles Per 1Hour because that how far apart the two horses are. ||  ||   ||
 * || Rate x || Time = || Distance ||
 * 7mph || x || 7x ||
 * 8mph || x || 8x ||

4 ** ||
 * ** Team member
 * Julia || || || ||

Two horses approach each other along the same country road, one walking at 8 mph, and the other at 7 mph. When the horses are 15 miles apart, a horsefly leaves one horse and flies at 25 mph towards the other. No sooner does the fly reach that horse than it turns around (losing no time on the turn) and returns to the first horse. If the fly continues to fly back and forth between the approaching horses, how far has the fly flown when the horses meet?  How far has the fly flown if he has flown back and forth between the two horses until they meet.  The horse fly flew a total of 25 miles when the horses meet. First I had to found out how long it would take for the horses to meet at 15 miles apart. I knew they were 15 miles apart and I knew one was traveling at 7 mph and the other at 8mph. I then decided to set up this equation.
 * // 1 point //**** State ** what the problem is looking for.
 * // 2 points //**** Answer ** the problem correctly.
 * // 5 points //**** Explain the process ** you used to solve the problem.

7x + 8x =15 15x = 15 15x/15 = 15/15 x = 1

I now knew that it took 1 hour for the horses to meet. I also knew that the horse fly was flying at 25mph, so in 1 hour (when the horses meet) the horse fly would have flown 25 miles.

I logically created an equation to find out how long it would take the horses to meet and answered it correctly. Then I knew it was 25 because it took 1 hour for the horses to meet and the horse fly flew at 25mph.
 * // 2 points //**** Justify ** your answer.