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	<title>Comments on: matemática câmbio</title>
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	<description>Exercícios para o Vestibular</description>
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		<title>By: amigo nerd</title>
		<link>http://www.amigonerd.com/matematica-cambio/comment-page-1/#comment-3062</link>
		<dc:creator>amigo nerd</dc:creator>
		<pubDate>Sun, 11 Jan 2009 20:33:04 +0000</pubDate>
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		<description>temos que&#160; comparar&#160; o valor do dolar com o valor em reais,
s&#243; temos reais em libra, logo, buscamos o valor do dolar em&#160;euro para comparar
1 euro ------- 0,7 libras0,9 euro ----- x libras
x= 0,9 . 0,7 libras
0,9 euros = 0,63 libras
1 real ----- 0,18&#160; librasx real ----- 0,63 libras
0,18x = 0,63x = 0,63/0,18x = 3,50&#160; reais
o dolar valia R$ 3,50&#160;&#160;</description>
		<content:encoded><![CDATA[<p>temos que&nbsp; comparar&nbsp; o valor do dolar com o valor em reais,<br />
s&oacute; temos reais em libra, logo, buscamos o valor do dolar em&nbsp;euro para comparar<br />
1 euro &#8212;&#8212;- 0,7 libras0,9 euro &#8212;&#8211; x libras<br />
x= 0,9 . 0,7 libras<br />
0,9 euros = 0,63 libras<br />
1 real &#8212;&#8211; 0,18&nbsp; librasx real &#8212;&#8211; 0,63 libras<br />
0,18x = 0,63x = 0,63/0,18x = 3,50&nbsp; reais<br />
o dolar valia R$ 3,50&nbsp;&nbsp;</p>
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