document.write( "Question 1110852: Last year, Ryan had $20,000 invest. He invested some of it in an account that paid 9% simple interest per year, and he invested the rest in an account that paid 10% simple interest per year. After one year, he received a total of $1840 in interest. How much did he invest in each account? \n" ); document.write( "

Algebra.Com's Answer #725849 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi   
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document.write( " Let x represent amount invested at 10%    
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document.write( "Principal•rate = Interest
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document.write( ".10x + .09($20,000-x) = $1840
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document.write( " .01x = $1840 - $1800
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document.write( " .01x = $40
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document.write( "x = $4000, amount at 10%, $16,000 at 9%  
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document.write( "CHECKING our answer***
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document.write( ".10•$4000 + .09•$16000= $400 + $1440 = $1840
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