document.write( "Question 170347This question is from textbook Introductory Algebra
\n" ); document.write( ": Solve the problem. Helen Weller invested $15,000 in an account that pays 12% simple interest. How much additional money must be invested in an account that pays 15% simple interest so that the total interest is equal to the interest on the two investments at the rate of 13%? \n" ); document.write( "

Algebra.Com's Answer #125732 by Mathtut(3670) $\"\"$ $\"About$

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lets call amount invested at 15%, x. so
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\n" ); document.write( "15000(.12)+x(.15)=(15000+x).13
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\n" ); document.write( "1800+.15x=1950+.13x
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\n" ); document.write( ".02x=150
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\n" ); document.write( " $\"highlight%28x=7500%29\"$ dollars...amount invested at 15% \n" ); document.write( "

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