document.write( "Question 1142970: James Investes a part of 150,000 at 75 and the remaining part at 5%. How much did he invest at 7% if he receive a total interest of 10,000 after a year? \n" ); document.write( "

Algebra.Com's Answer #763711 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
James Invests a part of 150,000 at 7% and the remaining part at 5%.
\n" ); document.write( " How much did he invest at 7% if he receive a total interest of 10,000 after a year? (Corrected)
\n" ); document.write( ":
\n" ); document.write( "let x = amt invested at 7%
\n" ); document.write( "The total is 150000, therefore
\n" ); document.write( "(150000-x) = amt invested at 5%
\n" ); document.write( ":
\n" ); document.write( ".07x + .05(150000-x) = 10000
\n" ); document.write( ".07x + 7500 - .05x = 10000
\n" ); document.write( ".07x - .05x = 10000 - 7500
\n" ); document.write( ".02x = 2500
\n" ); document.write( "x = 2500/.02
\n" ); document.write( "x = $125,000 invested at 7%
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Check: 150000 - 125000 = 25000
\n" ); document.write( ".07(125000) = 8750
\n" ); document.write( ".05(25000) = 1250
\n" ); document.write( "-----------------------
\n" ); document.write( "total return 10000 \n" ); document.write( "

\n" );