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Starting at home Louis travel up here to the gift store for 15 minutes after 6 mph he then travel back home along the same path down here at the speed of 20 mph what is his average speed for the entire trip from home to the gift store and back

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kaancceylan

Answer:

The answer is 19.5 miles per hour.

Step-by-step explanation:

If it takes Louisto reach the store 15 minutes at 6 miles per hour, the distance between the store and his home is 1.5 miles.

His speed travelling back is 20 miles per hour, which means that the 1.5 mile trip is completed in 4.5 minutes.

The total time he travels is 19.5 minutes and the total distance is 3 miles, so his average speed is Vavg = (3 * 60) / 19.5 = 9.23 miles per hour.

I hope this answer helps.