Four positive whole numbers add up to 39. One of the numbers is a Multiple of 7. The other three numbers are equal. Work out the result whe

Question

Four positive whole numbers add up to 39. One of the numbers is a Multiple of 7. The other three numbers are equal. Work out the result when the four numbers are mutliplied.

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Anna 3 weeks 2021-09-21T04:13:06+00:00 2 Answers 0

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    0
    2021-09-21T04:14:16+00:00

    Answer:

    6 and 5

    Step-by-step explanation:

    0
    2021-09-21T04:14:44+00:00

    4 positive whole numbers add up to 39. That means there are 4 factors. One is a multiple of 7. (7,14,21,28,35) The other 3 are equal. Let X equal the multiple of 7, and let Y equal the numbers that are equal.
    39=x+3y
    Now, we have to fill in the possible multiples of 7.

    39=7+3y
    39-7=7-7+3y
    32=3y
    32/3=3y/3
    10&2/3=y
    When we use 7, the 3 numbers are not equal whole numbers. Let’s try the next multiple.
    39=14+3y
    39-14=14-14+3y
    25/3=3y/3
    5=y
    Yes, that is a whole positive number. It’s correct.

    We have to plug in the other multiples just to check, but I’ll leave out the work.

    39=21+3y
    6=y
    Yes, that is a possible answer.

    39=28+3y
    3&2/3=y The 3 numbers are not whole numbers.

    39=35+3y
    1&1/3=y The 3 numbers are not whole numbers.

    In conclusion, the TWO possible answers are 39=14+3(5) and 39=21+3(6). If we multiply all four numbers for the first one then it equals 1750, and the second one equals 4536. Not sure what exactly your looking for, but I answered the best I could! Hope this helped. 🙂

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45:7+7-4:2-5:5*4+35:2 =? ( )