document.write( "Question 133787: Hello,
\n" ); document.write( "I am really confused about this word problem. Setting up the problem properly is what I need the most help on. Do you know how to set up the equation for this problem properly? Any help would be greatly appreciated.\r
\n" ); document.write( "\n" ); document.write( "A man invests a certain amount of money in an account that pays 7% annual interest. He invests $350 more than that in an account that pays 8% annual interest, how much did he invest in each account if the total interest after one year was $250? \r
\n" ); document.write( "\n" ); document.write( "Thank you,
\n" ); document.write( "Mrs. Gibson
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Algebra.Com's Answer #97885 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
A man invests a certain amount of money in an account that pays 7% annual interest. He invests $350 more than that in an account that pays 8% annual interest, how much did he invest in each account if the total interest after one year was $250?
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\n" ); document.write( "Let x = \"a certain amt of money\" invested at 7%
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\n" ); document.write( "It says $350 more than that is invested at 8%, therefore
\n" ); document.write( "(x+350) = amt invested at 8%
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\n" ); document.write( "We have a simple interest equation:
\n" ); document.write( ".07x + .08(x+350) = 250
\n" ); document.write( ".07x + .08x + 28 = 250; multiplied what's inside the brackets
\n" ); document.write( ".15x = 250 - 28; subtract 28 from both sides
\n" ); document.write( ".15x = 222
\n" ); document.write( "x = \"222%2F.15\"; divide both sides by .15
\n" ); document.write( "x = $1480 invested at 7%
\n" ); document.write( "then
\n" ); document.write( "1480 + 350 = $1830 invested at 8%
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\n" ); document.write( "Check solution by finding the total interest
\n" ); document.write( ".07(1480) + .08(1830) =
\n" ); document.write( "103.60 + 146.40 = 250; confirms our solution
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