document.write( "Question 830279: WHat are the solutions for these problems:\r
\n" ); document.write( "\n" ); document.write( "How should Php 5000 be invested n order that the annual income from one investment at 10% shall double the income from another investment at 15%.\r
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Algebra.Com's Answer #500558 by Edwin McCravy(20062) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "                 |    Phps    | percent |   Annual    |\r\n" );
document.write( "                 |   invested | decimal |   income    |\r\n" );
document.write( "-----------------|------------|---------|-------------|\r\n" );
document.write( "First investment |      x     |  0.10   |    0.10x    |\r\n" );
document.write( "Second investment|   5000-x   |  0.15   | 0.15(5000-x)|\r\n" );
document.write( "------------------------------------------------------\r\n" );
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document.write( "               \r\n" );
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document.write( "                    0.10x = 2[0.15(5000-x)]\r\n" );
document.write( "                    0.10x = 0.30(5000-x)\r\n" );
document.write( "                    0.10x = 1500-0.30x\r\n" );
document.write( "                    0.40x = 1500\r\n" );
document.write( "                        x = \r\n" );
document.write( "                        x = 3750 \r\n" );
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document.write( "                   5000-x = 5000-3750 = 1250.\r\n" );
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document.write( "So he should invest Php3750 at 10% and Php1250 at 15%\r\n" );
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document.write( "Edwin

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