document.write( "Question 557256: eva invested a certain amount of money at 15% intrest and $2500 more than that amount at 16%. her total yearly intrest was $1485. How much did she invest at each rate? \n" ); document.write( "
Algebra.Com's Answer #362509 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! eva invested a certain amount of money at 15% interest and $2500 more than that amount at 16%. her total yearly interest was $1485. How much did she invest at each rate? \n" ); document.write( "------------------- \n" ); document.write( "Equation: \n" ); document.write( "interest + interest = interest \n" ); document.write( "0.15x + 0.16(x+2500) = 1485 \n" ); document.write( "---- \n" ); document.write( "Multiply thru by 100 to get: \n" ); document.write( "15x + 16x + 16*2500 = 148500 \n" ); document.write( "---- \n" ); document.write( "31x = 108500 \n" ); document.write( "x = $3500 (amt. invested at 15%) \n" ); document.write( "---- \n" ); document.write( "x+2500 = $6000 (amt. invested at 16%) \n" ); document.write( "========================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================ \n" ); document.write( " \n" ); document.write( " |