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5 February, 11:33

An electric car is capable of going 225 km on a single charge. with a full charge to start, how many additional charges will it need to travel from seattle, washington, to san diego, california, a distance of 1257 mi?

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  1. 5 February, 12:33
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    We are given that the capacity of 1 charge is 225 km, so the rate of consumption is:

    rate = 1 charge / 225 km

    The total distance that must be travelled is:

    distance = 1257 mi = 2022.945 km

    So the total charges needed is:

    total charges = 1 charge / 225 km * 2022.945 km

    total charges = 9 charges

    Since we started with 1 full charge, so additional charges needed is only 8.

    Answer:

    8
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