document.write( "Question 162897: The interests earned on an investment varies directly with interest rate. If a 10% rate gives 200$, the interest rate that gives 300$ is.. \n" ); document.write( "
Algebra.Com's Answer #120054 by checkley77(12844)\"\" \"About 
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.10/200=x/300
\n" ); document.write( "200x=.1*300
\n" ); document.write( "200x=30
\n" ); document.write( "x=30/200
\n" ); document.write( "x=.15 or 15% interst rate yields the $300.
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