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Flauer [41]
3 years ago
6

Mary and Jerry are exercising on a track

Mathematics
2 answers:
sukhopar [10]3 years ago
6 0

Answer:

2.25

Step-by-step explanation:

Mary walks for 15 mins which is 0.75 mi. Jerry then starts jogging for 2 miles which is 30 minutes because he is jogging at 4 mph. This means Mary walked for 30 minutes which is 1.5 mi.

0.75+1.5=2.25

Luda [366]3 years ago
4 0
Jerry stopped after reaching 2 miles, therefore with the rate of 4 miles per hour, Jerry had only consumed 30 minutes. The given said the two persons stopped at the same time, therefore Mary stopped walking after 30 minutes.

With Mary's rate of walk, 3 miles per hour, we can just convert it to minutes and find the distance she has covered after 30 minutes.

3 miles/ 60 minutes, multiplying both numerator and denominator by 1/2, we will have 1.5 miles/30 minutes. Therefore, Mary has covered a distance of 1.5 miles around the track after the walk.
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Step-by-step explanation:

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