document.write( "Question 1189676: Kumi is 4 times as old as Aimee. 3 years ago Kumi was 5 times as old as Aimee. How old is Aimee today?
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document.write( "A)9 B)12 C)15 D)45 E)48 \n" );
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Algebra.Com's Answer #821118 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "If a formal algebraic solution is required, then something like the other tutor provided is a good example. \n" ); document.write( "If the speed of getting an answer is important and formal algebra is not required, note that, because 5 distinct answer choices are given, the problem can be solved most quickly simply by trying the answer choices. \n" ); document.write( "Doing that can also give you some good mental exercise. \n" ); document.write( "Kumi is 4 times as old as Aimee, and the answer choices are for Aimee's age. So note immediately that answer choices D and E are unreasonable, since they would make Kumi 180 or 192 years old. \n" ); document.write( "Try answer choice A: \n" ); document.write( "Aimee is 9, so Kumi is 36 \n" ); document.write( "3 years ago their ages were 6 and 33 \n" ); document.write( "No, 33 is not 5 times 6 \n" ); document.write( "Try answer choice B: \n" ); document.write( "Aimee is 12, so Kumi is 4*12=48 \n" ); document.write( "3 years ago their ages were 9 and 45 \n" ); document.write( "Yes, 45 is 5 times 9 \n" ); document.write( "ANSWER: B)12 \n" ); document.write( " \n" ); document.write( " |