document.write( "Question 934262: Ralph invests $15,600 into two accounts;a saving account and checking account.The savungs account earns 8% back intrest and the chevking earns 9%.After 1 year he has earned $1334.28 intrest.How much did Ralph invest into each account \n" ); document.write( "
Algebra.Com's Answer #568710 by mananth(16946)\"\" \"About 
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Part I 8.00% per annum ------------- Amount invested =x
\n" ); document.write( "Part II 9.00% per annum ------------ Amount invested = y
\n" ); document.write( " 15600
\n" ); document.write( "Interest----- 1334.28
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\n" ); document.write( "Part I 8.00% per annum ---x
\n" ); document.write( "Part II 9.00% per annum ---y
\n" ); document.write( "Total investment
\n" ); document.write( "x + 1 y= 15600 -------------1
\n" ); document.write( "Interest on both investments
\n" ); document.write( "8.00% x + 9.00% y= 1334.28
\n" ); document.write( "Multiply by 100
\n" ); document.write( "8 x + 9 y= 133428.00 --------2
\n" ); document.write( "Multiply (1) by -8
\n" ); document.write( "we get
\n" ); document.write( "-8 x -8 y= -124800.00
\n" ); document.write( "Add this to (2)
\n" ); document.write( "0 x 1 y= 8628
\n" ); document.write( "divide by 1
\n" ); document.write( " y = 8628
\n" ); document.write( "Part I 8.00% $ 6972
\n" ); document.write( "Part II 9.00% $ 8628
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\n" ); document.write( "CHECK
\n" ); document.write( "6972 --------- 8.00% ------- 557.76
\n" ); document.write( "8628 ------------- 9.00% ------- 776.52
\n" ); document.write( "Total -------------------- 1334.28
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\n" ); document.write( "m.ananth@hotmail.ca
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