Thread: Why .9r = 1
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Old 10-15-2004, 07:59 PM   #4 (permalink)
Paradise Lost
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Location: Poland, Ohio // Clarion University of PA.
Erm, no, the problem is totally wrong, and even my first explaination was wrong, in a way.

The problem looks like this.

x = .9r
10(.9r)=9.9r
10(.9r)-.9r=9.9r-.9r
8.1r=9.0r
r=1.11r
1=1.11 (Which is the correct answer, although of course, the not true one... something like that.)

and .3333333 does not equal 1/3rd. .33 repeating is irrational and can't be expressed as a fraction, .3333 repeating is a close approximation of 1/3rd.

So no, it still doesn't work.
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