document.write( "Question 1080007: Mrs. Powell has $800 invested in stocks and $500 invested in a Certificate of Deposit. The CD has an interest rate two times greater than the stocks. If her annual interest on these two investments is $45, at what rate of interest is the $500 invested? \n" ); document.write( "
Algebra.Com's Answer #694296 by jorel1380(3719)\"\" \"About 
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Let n and 2n be the interest rates of the stocks and the CD, respectively. Then:
\n" ); document.write( "800n+500(2n)=45
\n" ); document.write( "1800n=45
\n" ); document.write( "n=45/1800 or .025, which is 2.5%. Therefore, the CD rate is 5%. ☺☺☺☺
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