document.write( "Question 731211: I'm trying to work a problem on how long it will take a savings acct bal to reach 1,000,000 if i deposited 2947 at 9% interest compounded quarterly,\r
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document.write( "I'm using the equation A=P(1+i)^n\r
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document.write( "with no luck,,please help \n" );
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Algebra.Com's Answer #447047 by lwsshak3(11628) ![]() You can put this solution on YOUR website! how long it will take a savings acct bal to reach 1,000,000 if i deposited 2947 at 9% interest compounded quarterly \n" ); document.write( "*** \n" ); document.write( "A=P(1+i)^n \n" ); document.write( "P=initial investment=2947 \n" ); document.write( "i=interest per period(quarter)=.09/4=0.0225 \n" ); document.write( "n=number of periods \n" ); document.write( "A=amount after n periods=10^6 \n" ); document.write( ".. \n" ); document.write( "10^6=2497(1+.0225)^n \n" ); document.write( "10^6/2497=(1.0225)^n \n" ); document.write( "take log of both sides \n" ); document.write( "log(10^6)-log(2497)=nlog(1.0225) \n" ); document.write( "log(10^6)=6 \n" ); document.write( "6-log(2497)/(log(1.0225))=n \n" ); document.write( "n≈269 periods(quarters) or ≈ 67 yrs \n" ); document.write( " |