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  1. #1
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    Math Problem Help!

    Can someone please explain to me how to solve these two problems:

    4 1/4% of (?) = 8.5


    2/3% of (?) = 33.3


    Please show your work and explain in detail so I'm able to solve my self without a calculator. Thanks!
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by student82 View Post
    Can someone please explain to me how to solve these two problems:

    4 1/4% of (?) = 8.5


    2/3% of (?) = 33.3


    Please show your work and explain in detail so I'm able to solve my self without a calculator. Thanks!
    i will do the second, i leave the first to you.

    remember, "%" means "out of 100" or "over 100" and "of" means multiply.

    thus, 2/3% of x = 33.3 is the same as saying 2/3 *(1/100) * x = 33.3

    that is, 2/300 * x = 33.3

    multiplying by 300 then dividing by 2 we get x = 4995

    now do the first and type what you get
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  3. #3
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    4 1/4 = 17/4

    17/4*(1/100) * x = 8.5

    17/400 * x = 8.5

    400 * 8.5 = 3400

    3400 divided by 17 = 200!

    THANK YOU!!!

    On the problem you did my answer key is telling me the answer is 5000 and when I used your same method on the problem I did I came up with the correct answer on my answer key. Do you think it's a typo on my practice test? It gives me multiple choice and the answers in the back. On your problem it gives me A. 5000, B. 400, C. 600, D. 1000 & the answer key says A is the correct answer.
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  4. #4
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    Quote Originally Posted by student82 View Post
    4 1/4 = 17/4

    17/4*(1/100) * x = 8.5

    17/400 * x = 8.5

    400 * 8.5 = 3400

    3400 divided by 17 = 200!

    THANK YOU!!!

    On the problem you did my answer key is telling me the answer is 5000 and when I used your same method on the problem I did I came up with the correct answer on my answer key. Do you think it's a typo on my practice test? It gives me multiple choice and the answers in the back. On your problem it gives me A. 5000, B. 400, C. 600, D. 1000 & the answer key says A is the correct answer.
    4% of 5000 is 200 so 4 1/4% of 500 can't be 8.5. More precisely, 4 1/4 % of 5000 is 212.5 not 8.5.
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  5. #5
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    Quote Originally Posted by HallsofIvy View Post
    4% of 5000 is 200 so 4 1/4% of 500 can't be 8.5. More precisely, 4 1/4 % of 5000 is 212.5 not 8.5.
    Your correct, I understand exactly what your saying. However, your confusing my statement with another problem that Jhevon solved for me. For the problem 4 1/4% of (?) = 8.5 the answer is 200, For the problem Jhevon solved and explained for me: 2/3% of (?) = 33.3 Jhevon came up with the answer of 4995 and my answer key is saying it's 5000.
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  6. #6
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    Quote Originally Posted by student82 View Post
    Your correct, I understand exactly what your saying. However, your confusing my statement with another problem that Jhevon solved for me. For the problem 4 1/4% of (?) = 8.5 the answer is 200, For the problem Jhevon solved and explained for me: 2/3% of (?) = 33.3 Jhevon came up with the answer of 4995 and my answer key is saying it's 5000.
    That's probably because 33.3, as given, is an approximation and should be 33.\bar{3} (repeating decimal) or 33\frac{1}{3}. If you use either of these you will get 5000 as your answer.


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