document.write( "Question 125456: Can someone please help me with this problem?
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document.write( "If the population of a town is currently 350,000 and increasing at a rate of 3.25% each year, approximately when will the population reach 1,000,000 assuming it maintains this steady rate of growth?
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document.write( "My answer options are:
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document.write( "a.33.8 yrs
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document.write( "b.3.73 yrs
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document.write( "c.32.8 yrs
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document.write( "d.17.5 yrs
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document.write( "Please get back to me as soon as possible, I am homeschooled but on a deadline to get this finished, thanks!!!! \n" );
document.write( "
Algebra.Com's Answer #92127 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! If the population of a town is currently 350,000 and increasing at a rate of 3.25% each year, approximately when will the population reach 1,000,000 assuming it maintains this steady rate of growth? \n" ); document.write( ": \n" ); document.write( "Let t = no. of years for this to occur \n" ); document.write( ": \n" ); document.write( "We know the population in 1 yr, we can multiply 350,000 by 1.0325, \n" ); document.write( "therefore, the equation will be: \n" ); document.write( ": \n" ); document.write( "350000*(1.0325)^t = 1000000 \n" ); document.write( ": \n" ); document.write( "Divide both sides by 350000 \n" ); document.write( "1.0325^t = \n" ); document.write( "1.0325^t = 2.857 \n" ); document.write( ": \n" ); document.write( "Use the nat log of both sides: \n" ); document.write( "ln(1.0325^t) = ln(2.857) \n" ); document.write( ": \n" ); document.write( "The log equivalent of exponents: \n" ); document.write( "t * ln(1.0325) = ln(2.857) \n" ); document.write( ": \n" ); document.write( "Find the nat log of both sides: \n" ); document.write( ".03198t = 1.04977 \n" ); document.write( "t = \n" ); document.write( "t = 32.8258 ~ 32.8 \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check solution on a good calc; enter 350000 * l.0325^32.8 = 999222 ~ 1000000 \n" ); document.write( ": \n" ); document.write( "You can try the other solutions and see which one is closest to 1,000,000\r \n" ); document.write( "\n" ); document.write( "~ \n" ); document.write( " |