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18 July, 06:51

The Gerardi family can travel to Oshkosh, Wisconsin, from Chicago, Illinois, in 4 hours if they drive an average of 45 miles per hour. How long would it take them if they increased their average speed to 50 miles per hour?

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  1. 18 July, 07:07
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    it will take them 3.6 hours if their speed is increased

    Step-by-step explanation:

    First of all, we will need to find the total distance the Geradi family will be travelling. This is a better way to start, as the distance is constant regardless of their change in velocity.

    Distance travelled = speed of travel X time taken = 45 X 4 = 180 miles per hour.

    If the Geradi family increases their speed to 50 miles per hour, their new time will be got by dividing the total distance travelled by this new speed.

    New travel time = 180 miles / 50 miles per hour = 3.6 hours
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