document.write( "Question 631363: A retired couple invested $15000 in bonds. At the end of a year, they received an interest payment of $1125. What was the simple interest rate of the bonds? \n" ); document.write( "
Algebra.Com's Answer #397523 by 303795(602)\"\" \"About 
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Interest = Principle x rate x time
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\n" ); document.write( "$1125 = $15000 x rate x 1
\n" ); document.write( "rate = $1125/$15000
\n" ); document.write( "=0.075
\n" ); document.write( "=7.5%
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