Algebra

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I have to write each of the following percent change into a ratio comparing it to the original quantity. Then I have to write it as a constant multiplier.
This is the example in my book:
3% increase, 103/100, 1+0.03
So I understand how to do single digit numbers, like 8, but the problems i'm stuck on are:
11% decrease
12.5% growth
6 1/4% loss and x% increase.
How would I go about solving these?

  • Algebra -

    1 + .03 = 1.03

    1 - .11 = .89

    1 + .125 = 1.125 = 9/8 (.125 = 1/8)

    1 - .0625 = .9375 = 15/16
    (.0625 = half of .125 or 1/16)

    (1 + x)?

    I hope this helps. Thanks for asking.

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