document.write( "Question 911783: Dale invested his savings in two investment funds. The $6000 that he invested in Fund A returned a 10% profit. The amount that he invested in Fund B returned a 3% profit. How much did he invest in Fund B, if both funds together returned a 5% profit? \n" ); document.write( "
Algebra.Com's Answer #553343 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! We know 3 rates and one amount invested. \n" ); document.write( "0.1*6000+0.03*x=0.05*(6000+x) \n" ); document.write( "Multiply out. \n" ); document.write( "600+0.03*x=300+0.05*x \n" ); document.write( "Combine like terms. \n" ); document.write( "-0.02*x=-300 \n" ); document.write( "Isolate x. \n" ); document.write( "x=-300/-0.02 \n" ); document.write( "Divide. \n" ); document.write( "x=$15000 \n" ); document.write( "Check. \n" ); document.write( "0.1*6000+0.03(x)=0.05*(6000+x) \n" ); document.write( "600+0.03*15000=0.05*(6000+15000) \n" ); document.write( "600+450=0.05*(21000) \n" ); document.write( "1050=1050 \n" ); document.write( "Ok \n" ); document.write( " \n" ); document.write( " |