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    keke345's Avatar
    keke345 Posts: 1, Reputation: 1
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    #1

    Nov 28, 2011, 03:17 PM
    Proportions
    In 3 square miles of a jungle, there are 14 kinds of species. If the whole jungle is 35 square miles, how many kinds of species will you find?
    pready's Avatar
    pready Posts: 3,197, Reputation: 207
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    #2

    Nov 30, 2011, 08:45 AM
    First thing to do is find the number of species per square mile of jungle.

    So 14 divided by 3 = X

    Now take X times 35 = number of species in 35 miles.

    Another way to solve this is:

    3/14 = 35/x
    Now cross multiply so 3 times X equals 35 times 14, then divide both sides by 3 so that X equals number of species in 35 miles.

    Note: Both results should equal the same number of species in 35 miles.

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