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6 January, 03:18

Mary's thinking of 3 consecutive even integers, X, Y, and Z. 3 times the value of Z exceeds half the value of X by 37. What's the value of Z

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  1. 6 January, 03:21
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    Answer: The value of Z is 14

    Step-by-step explanation: The numbers are X, Y and Z and they are described as consecutive integers. That means there is a difference of 2 between each number (just like even numbers 2, 4, 6 8 ...). In other words if the first number is X, the next number would be X+2, while the third one would be X+4, and so on. This means Y would be X+2 and Z would be X+4.

    However, 3 times the value of Z (X+4) exceeds half of X (X/2) by 37. This can be expressed as follows;

    3 (X + 4) = X/2 + 37

    3X + 12 = X/2 + 37

    3X - X/2 = 37 - 12

    (6X - X) / 2 = 25

    6X - X = 25 * 2

    5X = 50

    Divide both sides of the equation by 5

    X = 10

    Therefore, Z (X + 4) equals 10 + 4 which gives you 14

    The value of Z = 14
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