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If the ratio of 2a to b is 8 times the ratio of b to a, th
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08 Oct 2017, 00:36
08 Oct 2017, 00:36
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55% (01:22) correct
45% (01:31) wrong based on 80 sessions
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If the ratio of 2a to b is 8 times the ratio of b to a, then \(\frac{b}{a}\) could be which of the following?
Indicate all possible choices.
❑ \(-2\)
❑ \(-\frac{1}{2}\)
❑ \(\frac{1}{4}\)
❑ \(\frac{1}{2}\)
❑ \(2\)
Re: If the ratio of 2a to b is 8 times the ratio of b to a, th
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08 Oct 2017, 22:53
08 Oct 2017, 22:53
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Carcass wrote:
If the ratio of 2a to b is 8 times the ratio of b to a, then \(\frac{b}{a}\) could be which of the following?
Indicate all possible choices.
This can be written as
\(\frac{2a}{b} = \frac{8b}{a}\)
or \(2a^2 =8b^2\)
or \(\frac{b^2}{a^2} = \frac{2}{8} = \frac{1}{4}\)
or \(\frac{b}{a}\) =\(+\frac{1}{2}\) or \(-\frac{1}{2}\) (Taking square root)
Re: If the ratio of 2a to b is 8 times the ratio of b to a, th
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17 Apr 2025, 10:26
17 Apr 2025, 10:26
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