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Mathematics
Arithmetic
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The sum of 16 reciprocals (1 over the number) is found to equal 4. What is the harmonic mean of the original (i.e., non-reciprocated) scores?
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The sum of 20 reciprocals (1 over the number) is found to equal 5. What is the harmonic mean of the original (i.e., non-reciprocated) scores? (2 points)
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The sum of 16 reciprocals (1 over the number) is found to equal 4. What is the harmonic mean of the original (i.e.,
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To find the harmonic mean of the original scores, we need to determine the arithmetic mean of the
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Which statement is true about a number and its additive inverse?
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D. Their sum is always zero.
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One number is 4 times another. If the sum of their reciprocals is 5/36 , find the two numbers.
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one integer is 5 less than another. Find the number if the sum of their reciprocals is 17/66?
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1/x + 1/(x-5) = 17/66 x=11 check: 1/11 + 1/6 = (6+11)/66 = 17/66
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Two integers differ by four, with the property that the sum of their reciprocals is the same as 14 times the product of their
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One number is 4 times another number. The sum of their reciprocals is 1/4. What are the numbers?
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Let's call the smaller number "x". According to the problem, the larger number is 4 times x, or 4x.
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the answer is -22 I just did the problem
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Find the possible real numbers x, x+2, and x+8 such that the reciprocal of the smallest number is the sum of the reciprocals of
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1/x =1/(x+2) + 1/(x+8) (x+2)(x+8) = x(x+8) + x(x+2) x^2 + 10 x + 16 = x^2 + 8 x + x^2 + 2 x x^2 -16
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