document.write( "Question 1131864: Phyllis invested $10,500, a portion earning a simple interest rate of 8 1/5% per year and the rest earning a rate of 8% per year. After one year the total interest earned on these investments was $858.00. How much money did she invest at each rate? \n" ); document.write( "
Algebra.Com's Answer #748564 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! x invested at 0.0825 \n" ); document.write( "10500-x invested at 0.08 \n" ); document.write( "so interest in 1 year is .0825x+840-.08x=858 \n" ); document.write( "then 0.0025x=18 \n" ); document.write( "and x=$7200 @ 8.25% earning $594 \n" ); document.write( "and 10500-x=3300 @8% earning $264 \n" ); document.write( "They add to $858, \n" ); document.write( " |