SOLUTION: Mary and Jerry are exercising on a track. Mary is walking at a rate of 3 miles per hour. Jerry starts jogging at a rate of 4 miles per hour after Mary has been walking for 15 minu

Question 1074863: Mary and Jerry are exercising on a track. Mary is walking at a rate of 3 miles per hour.
Jerry starts jogging at a rate of 4 miles per hour after Mary has been walking for 15 minutes.
Jerry jogs 2 miles as Mary continues walking, and they both stop at the same time. Enter the total distance, in miles, that Mary walks around the track.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Mary and Jerry are exercising on a track.
Mary is walking at a rate of 3 miles per hour.
Jerry starts jogging at a rate of 4 miles per hour after Mary has been walking for 15 minutes.
Jerry jogs 2 miles as Mary continues walking, and they both stop at the same time.
Enter the total distance, in miles, that Mary walks around the track.
:
Find the distance M had walked when J starts jogging. 15min = .25 hrs
3 * .25 = .75 mi
Find how long it took J to jog 2 mi at 4 mph
2/4 = .5 hrs
Find how far M can walk in .5 hrs at 3 mph
.5 * 3 = 1.5 mi
"Enter the total distance, in miles, that Mary walks around the track"
.75 + 1.5 = 2.25 mi or 2 mi
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