document.write( "Question 619321: Besty a recent retiree,requires $5,000 per year in extra income. She has $70,000 to invest and can invest in B-rated bonds paying 15% per year or in a certificate of deposit (CD) paying 7% a year. How much should be invested in each to realize exactly $5,000 in interest per year? \n" ); document.write( "
Algebra.Com's Answer #389551 by stanbon(75887)\"\" \"About 
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Betsy a recent retiree,requires $5,000 per year in extra income. She has $70,000 to invest and can invest in B-rated bonds paying 15% per year or in a certificate of deposit (CD) paying 7% a year. How much should be invested in each to realize exactly $5,000 in interest per year?
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\n" ); document.write( "Equation:
\n" ); document.write( "interest + interest = interest
\n" ); document.write( "---
\n" ); document.write( "0.15x + 0.07(70000-x) = 5000
\n" ); document.write( "Multiply thru by 100 to get:
\n" ); document.write( "15x + 7*70000-7x = 500000
\n" ); document.write( "-----
\n" ); document.write( "8x = 500000-7*70000
\n" ); document.write( "8x = 10000
\n" ); document.write( "x = $1,250.00 (amt. invested at 15%)
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\n" ); document.write( "70000-x = $68750.00 (amt. invested at 7%)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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