document.write( "Question 290312: I am trying to help a student and cannot seem to solve this problem...\r
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document.write( "Nate has a savings account that is at 6% per year, he puts in $600 and adds no more.\r
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document.write( "The book shows that x = 600(1.06)^t where x is total amount in account and
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document.write( "t is the time in years.\r
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document.write( "How long will it take to reach $2400.. so:\r
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document.write( "$2400 = $600(1.06)^t if I have my logs correct that means
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document.write( "first you divide by 600 so the statement reads\r
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document.write( "4 = (1.06)^t then t=log(1.06)(4)...this answer comes out to be .10 which is no where near the right answer which should be around 12.\r
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document.write( "Any ideas as to what I am doing wrong?
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document.write( "thanks \n" );
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Algebra.Com's Answer #210077 by scott8148(6628) You can put this solution on YOUR website! \"4 = (1.06)^t then t=log(1.06)(4)...\" ___ the error is here \n" ); document.write( "___ not sure how you went from first part to second part\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "4 = (1.06)^t ___ log(4) = t [log(1.06)]\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "t = [log(4)] / [log(1.06)] \n" ); document.write( " |