Agirl ran to a store at the rate of 6 miles per hour, and she walked back at the rate of 4 miles per hour. if it took 15 minutes for the round trip, how far away is the store?

distance=speed*time d=6t d=4(0.25-t) (15 minutes=15/60hours = 0.25 hours) 6t=4(0.25-t) 6t=1-4t 6t+4t=1 10t=1 t=1/10 of an hour d=6t d=6(1/10) d=6/10 or 3/5 of a mile the store is 6/10 or 3/5 of a mile away

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