Efren leaves home at 9:00 A.M. and walks 4 miles per hour. His brother, Gregory, leaves half and hour later and runs 8.5 miles p
er hour in the same direction as Efren. Predict the time at which Gregory will catch up to Efren.
1 answer:
Y=4x+30
y=8.5x
It will be about 26 2/3 hours.
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