SOLUTION: Find three consecutive integers such that the sum of the first plus one-third of the second plus three-fourths of the third is 31.

Question 211262: Find three consecutive integers such that the sum of the first plus one-third of the second plus three-fourths of the third is 31.
Found 2 solutions by stanbon, MathTherapy:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Find three consecutive integers such that the sum of the first plus one-third of the second plus three-fourths of the third is 31.
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1st: x-1
2nd: x
3rd: x+1
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Equation:
x-1 = (1/3)x + (3/4)(x+1)
Multiply thru by 12 to get:
12x - 12 = 4x + 9x + 9
x = -21
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1st: x-1 = -22
2nd: x = -21
3rd: x = -20
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Cheers,
Stan H.
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!
Find three consecutive integers such that the sum of the first plus one-third of the second plus three-fourths of the third is 31.

Let the 1st number be F
Then the 2nd and 3rd numbers are (F + 1) and (F + 2), respectively
Since the sum of the 1st, one-third of the second, and three-fourths of the 3rd is 31,
then:
Multiply the equation by the LCD, 12 to get: 12F + 4F + 4 + 9F + 18 = 372
25F = 350
F = = 14
Since F, or the 1st number is 14, the 3 consecutive integers are:
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Check
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The 1st, plus of 15 (the second), plus of 16 (the 3rd number) equals 31, or,

31 = 31 (TRUE)

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