document.write( "Question 1101819: Mummy invested a total of $25000 in stocks, bonds and mutual fund. in one year, she earned 8% on her stocks investment, 10% on her bonds investment and 6% on her mutual fund investment, with a total of $1860. unfortunately, the amount she invested in the mutual fund was twice as large as the amount she invested in the bonds. how much did she invest in each? \n" ); document.write( "
Algebra.Com's Answer #716441 by richwmiller(17219)\"\" \"About 
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s+b+m=25000
\n" ); document.write( ".08s+.10*b+.06m=1860
\n" ); document.write( "m=2b
\n" ); document.write( "s+b+2b=25000
\n" ); document.write( "s+3b=25000
\n" ); document.write( ".08s+.10*b+.06*2b=1860\r
\n" ); document.write( "\n" ); document.write( ".08s+.22b=1860
\n" ); document.write( "s+3b=25000
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Solved by pluggable solver: Linear System solver (using determinant)
Solve:
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\n" ); document.write( " (s=4000, b=7000}
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\n" ); document.write( "\n" ); document.write( "m=2b
\n" ); document.write( "m=14000
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\n" ); document.write( "4000+7000+14000=25000
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\n" ); document.write( ".08s+.10*b+.06m=1860
\n" ); document.write( ".08 *4000+.10*7000+.06*14000=1860
\n" ); document.write( "320+700+840=1860
\n" ); document.write( "1860=1860
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