Efren leaves home at 9 A.M. and walks at 4 miles per hour. His brother, Gregory, leaves half an hour later and runs at 8.5 miles per hour in the same direction as Efren. Predict the time at which Gregory will catch up to Efren.

Well, the first one gets a head start of 2 miles. The relative speed of the second one is 4.5 miles per hour (8.5-4), so you've got 2/4.5 hours. That is 120/4.5 minutes or 26 minutes 40 seconds. That is, 10:26:40

Answered by Anonymous | 2024-06-10

Answer:kkkk ;

Answered by gnasirea | 2024-06-12

Gregory will catch up to Efren at approximately 9:57 A.M., after leaving at 9:30 A.M. Efren has a head start of 2 miles, and Gregory's faster speed allows him to catch up in about 26 minutes and 40 seconds. The calculated catch-up time indicates the exact moment they meet on their paths.
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Answered by Anonymous | 2024-10-15