document.write( "Question 629263: Suppose that Jake plans to deposit money into an account earning 5.9% compounded monthly.\r
\n" ); document.write( "\n" ); document.write( "a.) If he decides to deposit $4000 into the account, how much interest would he earn in four years?\r
\n" ); document.write( "\n" ); document.write( "b.) How much would his deposit have to be if he wanted to have a total of at least $10,000 after four years?
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Algebra.Com's Answer #396189 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
The formulas to use are FUTURE VALUE OF A PRESENT AMOUNT AND PRESENT VALUE OF A FUTURE AMOUNT.\r
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\n" ); document.write( "\n" ); document.write( "The reference for these formulas can be found here:
\n" ); document.write( "http://www.algebra.com/algebra/homework/Finance/FINANCIAL-FORMULAS-101.lesson\r
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\n" ); document.write( "\n" ); document.write( "The formulas are shown below:\r
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\n" ); document.write( "\n" ); document.write( "FUTURE VALUE OF A PRESENT AMOUNT
\n" ); document.write( "\"FV%28PA%29+=+PA+%2A+%281%2Bi%29%5En\"
\n" ); document.write( "FV = Future Value
\n" ); document.write( "PA = present amount
\n" ); document.write( "i = Interest Rate per Time Period
\n" ); document.write( "n = Number of Time Periods\r
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\n" ); document.write( "\n" ); document.write( "You would use the following values in the future value formula:\r
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\n" ); document.write( "\n" ); document.write( "FV = what you want to find.
\n" ); document.write( "PA = 4000
\n" ); document.write( "i = 5.9% / 100 = .059 / 12 = .0049167 per month (rounded to 7 decimal places)
\n" ); document.write( "n = 4 * 12 = 48 months.\r
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\n" ); document.write( "\n" ); document.write( "Your answer should be 5061.78 rounded to 2 decimal places.\r
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\n" ); document.write( "\n" ); document.write( "The interest earned is 5061.78 - 4000 = 1061.78\r
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\n" ); document.write( "\n" ); document.write( "PRESENT VALUE OF A FUTURE AMOUNT
\n" ); document.write( "\"PV%28FA%29+=+FA+%2F+%28%281%2Bi%29%5En%29+\"
\n" ); document.write( "PV = Present Value
\n" ); document.write( "FA = future amount
\n" ); document.write( "i = Interest Rate per Time Period
\n" ); document.write( "n = Number of Time Periods\r
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\n" ); document.write( "\n" ); document.write( "You would use the following values in the future value formula:\r
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\n" ); document.write( "\n" ); document.write( "PV is what you want to find.
\n" ); document.write( "FA = 10000
\n" ); document.write( "i = .0049167 per month (rounded to 7 decimal places)
\n" ); document.write( "n = 48\r
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\n" ); document.write( "\n" ); document.write( "Your answer should be 7902.36 rounded to 2 decimal places.\r
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\n" ); document.write( "\n" ); document.write( "That's how much he would have to deposit to end up with $10,000 in 4 years.
\n" ); document.write( "Confirm by sticking 7902.36 rather than 4000 in the future value of a present amount formula and you will find that the future value is 10,000.\r
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\n" ); document.write( "\n" ); document.write( "It's actually 9,999.996762, but the difference is due to rounding error. Carry the decimals further out and you'll get a lot closer and eventually right on if you carry enough decimal places.\r
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