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10 April, 00:15

The ratio of a number and 4 times that number is equal to the ratio of 5 times the number and 95 more than a number

I just need the problem

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  1. 10 April, 03:08
    0
    1/4 = (5n) / (n + 95)

    Step-by-step explanation:

    If all the numbers referred to are the same number, we can use n to represent it. Then, "the ratio of a number and 4 times that number" is n / (4n) = 1/4. "The ratio of 5 times the number and 95 more than the number" is (5n) / (n+95)

    The equation for the problem can be written ...

    1/4 = (5n) / (95+n)

    ___

    If you're a purist, you might leave the factors of "a number" in the first raio and write it ...

    n / (4n) = (5n) / (95+n)

    Solving this gets you to a quadratic form that has the extraneous solution n=0.
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