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

Question

Judith French

Mathematics

4 October, 07:08

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

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Madden Jimenez · Answer 1

2 and 1/4 miles is how far Mary walks around the track. This is because she walks for 15 minutes before Jerry gets there, which is 0.75 miles at 3mph. Then Jerry goes for 2 miles, which is half an hour. Half an hour is double 15 minutes, so it's double 0.75 miles. So 0.75 plus 1.5 = 2.25