Math

6.Use a proportion to solve the problem

31% of 70

x/100 = 31/70; 43.66
x/71 = 31/100; 22.01
x/31 = 71/100; 0.22
71/x = 31/100; 229.03

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  1. None of those answers is correct.

  2. Agree with Ms Sue, I suspect a typo.
    All the ratios contain 71 instead of 70

    BUT, why do this in such a complicated way, just find
    .31(71) = ...

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  3. n = 0.31 * 70.
    n = 31/100 * 70.
    Divide both sides by 70:
    n/70 = 31/100 is the required proportion to solve for n.

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  4. Sorry for the late reply but those were the answers on the question? If they're wrong, I'm not sure why. I'll see what's wrong and if I can see what's wrong then I'll repost with the right ones.

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