document.write( "Question 934985: Rico invests some of his savings at 4% per year and an equal amount at 5 percent per year. His income totals Php 1800 a year. How much did Rico invest at each Rate ? \n" ); document.write( "
Algebra.Com's Answer #568087 by TimothyLamb(4379)\"\" \"About 
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x = amount invested at 4%
\n" ); document.write( "y = amount invested at 5%
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\n" ); document.write( "x = y
\n" ); document.write( "0.04x + 0.05y = 1800
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\n" ); document.write( "put the system of linear equations into standard form
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\n" ); document.write( "x - y = 0
\n" ); document.write( "0.04x + 0.05y = 1800
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\n" ); document.write( "copy and paste the above standard form linear equations in to this solver:
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\n" ); document.write( "solution:
\n" ); document.write( "x = amount invested at 4% = 20000
\n" ); document.write( "y = amount invested at 5% = 20000
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