Answers

2015-10-29T20:51:02+08:00
Formula:mean1xmean2 divided by extreme2
example:
_:20=10:40
solution:
40N=20x10
40N=200
200 divided by 40=5
40N divided by 40=1
so its like a fraction 5/1 or basically 5
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Looks like a direct proportion :-)
  • Brainly User
2015-10-30T07:26:00+08:00

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If y is indirectly or inversely proportional to x, with k as the constant of proportionality, then:

y = k
      x

The relation is also written as: y \alpha x ^{-1}

Indirect/Inverse proportion means that as the first set of quantity in the relation increases, the corresponding quantity from the second set decreases.  

Examples:
1)  As the speed (s) increases, the time (t) to reach a destination decreases.
      s = k/t

2)  As the number of workers (w)to finish a certain job increases, the time (t) (hours, days, etc.) to finish the same job decreases.
      w = k/t




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