document.write( "Question 968188: If $80,000 is invested part at 8% and the rest at 10%, and the interest from one year is $7,800, how much was invested at 10%? \n" ); document.write( "
Algebra.Com's Answer #591681 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! If $80,000 is invested part at 8% and the rest at 10%, and the interest from one year is $7,800, how much was invested at 10%? \n" ); document.write( "------------- \n" ); document.write( "Equation: \n" ); document.write( "int + int = interest \n" ); document.write( "---- \n" ); document.write( "0.10x + 0.08(80,000-x) = 7800 \n" ); document.write( "----------- \n" ); document.write( "10x + 8*80000 - 8x = 780000 \n" ); document.write( "2x = 780000-640000 \n" ); document.write( "2x = 120000 \n" ); document.write( "x = $60,000 (amt. invested at 10%) \n" ); document.write( "------------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "----------------- \n" ); document.write( " \n" ); document.write( " |