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5 December, 00:26

the scale of a map is 0.5 inch : 40 miles. On the map, the distance between 2 cities is 5 inches. What is the actual distance between the two cities?

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  1. 5 December, 00:41
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    This is a proportion question.

    0.5:40 miles : : 5:x

    Translated into division you get 0.5/40 = 5/x Cross multiply

    0.5 x = 40 * 5 combine the right

    0.5x = 200 divide by 0.5

    0.5x/0.5 = 200/0.5 Divide

    x = 400

    Answer: The two cities are 400 miles apart
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