document.write( "Question 101292This question is from textbook Algebra 2 with Trigonometry
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document.write( ": hey could you please help me with this question : \"The yearly changes in the population of a city for three consecutive years are, respectively, 20% increase, 30% increase, and 20% decrease.What is the total percent change from the beginning to the end of the third year?\"\r
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document.write( "i will appreciate your help, my math teacher refused to help....if you could give me other examples it would be great. it can be other type of problem, \r
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document.write( "thank you! \n" );
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Algebra.Com's Answer #73794 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! \"The yearly changes in the population of a city for three consecutive years are, respectively, 20% increase, 30% increase, and 20% decrease.What is the total percent change from the beginning to the end of the third year?\" \n" ); document.write( "---------------- \n" ); document.write( "Let the population start at \"x\". \n" ); document.write( "After a 20% increase the population is 1.20x \n" ); document.write( "After a 30% increase the population is (1.30)[1.20x] \n" ); document.write( "After a 20% decrease the population is (0.80)(1.30)[1.20x = 1.248x \n" ); document.write( "That would be a gain of 24.8% \n" ); document.write( "=============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H.\"The yearly changes in the population of a city for three consecutive years are, respectively, 20% increase, 30% increase, and 20% decrease.What is the total percent change from the beginning to the end of the third year?\" \n" ); document.write( " \n" ); document.write( " |