document.write( "Question 433915: you invested 7000 in two accounts paying 2% and 3% annual interest.if the total
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document.write( "interest earned for the year was 170 how much was invested at each rate \n" );
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Algebra.Com's Answer #300724 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! you invested 7000 in two accounts paying 2% and 3% annual interest.if the total \n" ); document.write( "interest earned for the year was 170 how much was invested at each rate \n" ); document.write( "------------------------------- \n" ); document.write( "Equations: \n" ); document.write( "Quantity: x + y = 7000 \n" ); document.write( "Interest:0.02x+0.03y = 170 \n" ); document.write( "------ \n" ); document.write( "Multiply 1st by 2 \n" ); document.write( "Multiply 2nd by 100 \n" ); document.write( "----------------------- \n" ); document.write( "2x + 2y = 2*7000 \n" ); document.write( "2x + 3y = 17000 \n" ); document.write( "-------------------- \n" ); document.write( "Subtract and solve for \"Y\"; \n" ); document.write( "y = $3000 (amt. invested at 2%) \n" ); document.write( "--- \n" ); document.write( "Solve for \"x\": \n" ); document.write( "x+y = 7000 \n" ); document.write( "x+3000 = 7000 \n" ); document.write( "x = $4000 (amt. invested at 3%) \n" ); document.write( "------------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=========== \n" ); document.write( " |