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Answers ( 10 )
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     Number of male students:

    60- (60.3 / 5) = 24 (student)
    Answer: 24 male students

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    number of terms is:

    (1000-1)/2+1=500,5

    the sum is (1000+1).500,5/2=250500.25

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    The biggest cake that he can get from the store is:


                                              30: 3 = 10 (pastry)

                                                      Answer: 10 cakes

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    Với 2x + 3 = x + 2

    => 2x - x = 2 - 3

    => X = -1

    Với 2x + 3 = - (x + 2)

    => 2x + 3 = -x - 2

    => 2x + x = -2 - 3

    => 3x = -5

    => X =  - 5 3

    X = -1 và x =  - 5 3

    B) Chúng ta có: 

    A = | x - 2006 | + | 2007 - x | ≥  | x - 2006 + 2007 - x | = | 1 | = 1

    ⇔ { | X - 2006 | ≤ 0 | 2007 - x | ≤ 0 ⇒ { x = 2006 x = 2007

    Vì vậy, khi x = 2006; 2007 thì giá trị A nhỏ nhất 

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    (45+126+51+549+83+84+169+545):8=206.5

     If you answered correctly, then meHaha

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    (45 + 126 + 51 + 549 + 83 + 84 + 169 + 545): 8 = 206.5

    If you answered correctly, then me Haha

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    (45+126+51+549+83+84+169+545):8=206.5

    ​If you answered correctly, then meHaha

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    Nếu p = 2 thì p 8 không phải là số nguyên tố.

    Nếu p = 3 thì p 8 và p + 16 là số nguyên tố.

      ⇒32 + (3 + 8) 2+ (3 + 16) 2 = 491⇒32 + (3 + 8) 2+ (3 + 16) 2 = 491

    Nếu p> 3 thì [p = 3k + 1p = 3k + 2 [p = 3k + 1p = 3k + 2

      + Nếu p = 3k + 1 thì p + 8 = 3k + 9 = 3 (k + 1) không phải là số nguyên tố.

      + Nếu p = 3k + 2 thì p + 16 = 3k + 18 = 3 (k + 6) không phải là số nguyên tố.

    Trả lời: 491

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