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12 June, 23:05

If one half of an integer is added to one fifth of the next consecutive integer, the sum is 10. Find the integers.

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Answers (2)
  1. 12 June, 23:51
    0
    1/2x + 1/5 (x + 1) = 10

    1/2x + 1/5x + 1/5 = 10

    5/10x + 2/10x = 10 - 1/5

    7/10x = 50/5 - 1/5

    7/10x = 49/5

    x = 49/5 * 10/7

    x = 490/35

    x = 14

    x + 1 = 15

    ur integers are 14 and 15
  2. 13 June, 02:00
    0
    Let 1st integer be x and next consecutive be x+1

    1/2•x + 1/5• (x+1) = 10

    x/2 + x/5 + 1/5 = 10

    -1/5 - 1/5

    x/2 + x/5 = 49/5

    (x/2) •5/5 + (x/5) •2/2 = 49/5

    5x/10 + 2x/10 = 49/5

    7x/10 = 49/5

    •10 •10

    7x = 98

    :7 : 7

    x = 14 - - > 1st integer

    x+1 = 14+1 = 15 - - > next consecutive integer
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