document.write( "Question 1195103: John had a total of 319 blue and red envelopes. If 1/3 the number of blue envelopes was the same as 2/5 the number of red envelopes, how many blue envelopes did he have? \n" ); document.write( "
Algebra.Com's Answer #827471 by MathLover1(20850)\"\" \"About 
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let blue envelopes be \"b\" and red envelopes \"r\"\r
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\n" ); document.write( "\n" ); document.write( "John had a total of \"319\": so, \r
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\n" ); document.write( "\n" ); document.write( "\"b%2Br=319\".........eq..1\r
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\n" ); document.write( "\n" ); document.write( "If \"1%2F3\" the number of blue envelopes was the same as \"2%2F5\" the number of red envelopes, we have\r
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\n" ); document.write( "\n" ); document.write( "\"%281%2F3%29b=%282%2F5%29r\"\r
\n" ); document.write( "\n" ); document.write( "\"b=%28%282%2F5%29%2F%281%2F3%29%29r\"\r
\n" ); document.write( "\n" ); document.write( "\"b=%286%2F5%29r\"\r
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\n" ); document.write( "\n" ); document.write( "go to\r
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\n" ); document.write( "\n" ); document.write( "\"b%2Br=319\".........eq..1, substitute \"b\"\r
\n" ); document.write( "\n" ); document.write( "\"%286%2F5%29r%2Br=319\".........solve for \"r\"\r
\n" ); document.write( "\n" ); document.write( "\"%2811%2F5%29r=319\"\r
\n" ); document.write( "\n" ); document.write( "\"r=319%2F%2811%2F5%29\"\r
\n" ); document.write( "\n" ); document.write( "\"r=319%2A%285%2F11%29\"\r
\n" ); document.write( "\n" ); document.write( "\"r=145\"\r
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\n" ); document.write( "\n" ); document.write( "go to\r
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\n" ); document.write( "\n" ); document.write( "\"b=%286%2F5%29r\".....substitute \"r\"\r
\n" ); document.write( "\n" ); document.write( "\"b=%286%2F5%29145\"\r
\n" ); document.write( "\n" ); document.write( "\"b=174\"\r
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\n" ); document.write( "\n" ); document.write( "John did have \"174\" blue envelopes.\r
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