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Math Help - How High is Each Waterfall?

  1. #1
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    How High is Each Waterfall?

    The upper Angel Falls, the highest waterfall on Earth, are 750 m higher than Niagra Falls. If each of the falls were 7 m lower, the upper Angel Falls would be 16 times as high as Niaga falls. How high is each waterfall?

    My Work:

    Let x = height of Niagra Falls
    Let (x + 750) = height of Angel Falls

    If each fall is reduced by 7 meters, then I know that (x - 7) represents Niagra Falls and (x + 750) - 7 represents Angel Falls.

    The equation I came up with is:

    (x + 750) - 7 = 16(x - 7)

    Is this right?


    HINT Given in Book:

    The height of the Falls from the top of the Falls to the river is 188 feet (57 m).

    The answer for x using the above equation is 57 meters.

    Is any of this right?
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  2. #2
    MHF Contributor
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    West Malaysia
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    Quote Originally Posted by sharkman View Post
    The upper Angel Falls, the highest waterfall on Earth, are 750 m higher than Niagra Falls. If each of the falls were 7 m lower, the upper Angel Falls would be 16 times as high as Niaga falls. How high is each waterfall?

    My Work:

    Let x = height of Niagra Falls
    Let (x + 750) = height of Angel Falls

    If each fall is reduced by 7 meters, then I know that (x - 7) represents Niagra Falls and (x + 750) - 7 represents Angel Falls.

    The equation I came up with is:

    (x + 750) - 7 = 16(x - 7)

    Is this right?


    HINT Given in Book:

    The height of the Falls from the top of the Falls to the river is 188 feet (57 m).

    The answer for x using the above equation is 57 meters.

    Is any of this right?

    Yes you are correct .
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