document.write( "Question 806713: FV=4900(2.3)
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document.write( "FV=$11270.00\r
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document.write( "This answer was given to me by: rfer13424, but it is incorrect. I have no idea where they got (2.3). This is the problem: To what amount will $4,900 invested for 8 years at 11% compounded annually accumulate? Round to the nearest cent.\r
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document.write( "The correct answer is: $11,292.24\r
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document.write( "How did they get the correct answer? \n" );
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Algebra.Com's Answer #485980 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! $11,292.24 is correct \n" ); document.write( "You want to calculate your new prinicpal from: \n" ); document.write( "an initial investement of $4900 \n" ); document.write( "at 11% annual interest, \n" ); document.write( "compounded 1 times per year, \n" ); document.write( "after 8 year(s). \n" ); document.write( "Before we start, be sure to convert your interest rate at the time of compounding, 11%, into a decimal by dividing it by 100, so 11% becomes 0.11 for calculation purposes.\r \n" ); document.write( "\n" ); document.write( "Year 1, compounding time #1 \n" ); document.write( "Current principal is $4900.00 \n" ); document.write( "Interest earned on $4900.00 is $4900.00 × 0.11 = 539.00 \n" ); document.write( "This makes your new principal $4900.00 + $539.00 = $5439.00 \n" ); document.write( "Year 2, compounding time #1 \n" ); document.write( "Current principal is $5439.00 \n" ); document.write( "Interest earned on $5439.00 is $5439.00 × 0.11 = 598.29 \n" ); document.write( "This makes your new principal $5439.00 + $598.29 = $6037.29 \n" ); document.write( "Year 3, compounding time #1 \n" ); document.write( "Current principal is $6037.29 \n" ); document.write( "Interest earned on $6037.29 is $6037.29 × 0.11 = 664.10 \n" ); document.write( "This makes your new principal $6037.29 + $664.10 = $6701.39 \n" ); document.write( "Year 4, compounding time #1 \n" ); document.write( "Current principal is $6701.39 \n" ); document.write( "Interest earned on $6701.39 is $6701.39 × 0.11 = 737.15 \n" ); document.write( "This makes your new principal $6701.39 + $737.15 = $7438.55 \n" ); document.write( "Year 5, compounding time #1 \n" ); document.write( "Current principal is $7438.55 \n" ); document.write( "Interest earned on $7438.55 is $7438.55 × 0.11 = 818.24 \n" ); document.write( "This makes your new principal $7438.55 + $818.24 = $8256.79 \n" ); document.write( "Year 6, compounding time #1 \n" ); document.write( "Current principal is $8256.79 \n" ); document.write( "Interest earned on $8256.79 is $8256.79 × 0.11 = 908.25 \n" ); document.write( "This makes your new principal $8256.79 + $908.25 = $9165.03 \n" ); document.write( "Year 7, compounding time #1 \n" ); document.write( "Current principal is $9165.03 \n" ); document.write( "Interest earned on $9165.03 is $9165.03 × 0.11 = 1008.15 \n" ); document.write( "This makes your new principal $9165.03 + $1008.15 = $10173.18 \n" ); document.write( "Year 8, compounding time #1 \n" ); document.write( "Current principal is $10173.18 \n" ); document.write( "Interest earned on $10173.18 is $10173.18 × 0.11 = 1119.05 \n" ); document.write( "This makes your new principal $10173.18 + $1119.05 = $11292.23 \n" ); document.write( "In the end, $4900 has turned into $11292.23. \n" ); document.write( "You have made $6392.23 \n" ); document.write( "the formula is \n" ); document.write( "A = P(1 + r)^n \n" ); document.write( "p =4900 \n" ); document.write( "r=11 \n" ); document.write( "n=8 \n" ); document.write( "a=4900(1+.11)^8 \n" ); document.write( " |