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mitul
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What positive number 1s 224% bigger than its reciprocal 1) 28 Oct 2006, 18:33
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What positive number 1s 224% bigger than its reciprocal
1) 0.8
2) 1.1
3) 1.5
4) 1.8
5)2.2



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What positive number 1s 224% bigger than its reciprocal 1) 28 Oct 2006, 18:59
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x=(324/100)*(1/x)

Therefore x =1.8

D is correct
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What positive number 1s 224% bigger than its reciprocal 1) 28 Oct 2006, 19:07
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Agreed, D it is.
5/9 and 9/5
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What positive number 1s 224% bigger than its reciprocal 1) 29 Oct 2006, 08:22
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D the ratio turns of reciprocal a/ (1/a)=a^2
18* 1.8=3.24
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What positive number 1s 224% bigger than its reciprocal 1) 07 Dec 2007, 08:45
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ugo_castelo
D the ratio turns of reciprocal a/ (1/a)=a^2
18* 1.8=3.24
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18^2=324
just one of those squares we have to memorize
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gixxer1000
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What positive number 1s 224% bigger than its reciprocal 1) 07 Dec 2007, 08:58
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bmwhype2
ugo_castelo
D the ratio turns of reciprocal a/ (1/a)=a^2
18* 1.8=3.24

18^2=324
just one of those squares qwe have to memorize
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I memorize the approximate values of the first few square roots

ex. sqrt(2)=1.4
sqrt(3)=1.7
and of course sqrt(4)=2

so sqrt(3.24) has to be between 1.7 and 2



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