document.write( "Question 281389: three tired and hungry men went to sleep with a bag of apples. one man woke up, ate 1/3 of the applaes, then went back to sleep. later a second man woke up and ate 1/3 of the remaining alpples. when he was fiished there were 8 apples left. how many apples were in the bag originally \r
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document.write( "* create a solution that uses algebre and show all steps uses \n" );
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Algebra.Com's Answer #204395 by oberobic(2304)![]() ![]() ![]() You can put this solution on YOUR website! x = number of apples in the bag originally \n" ); document.write( ". \n" ); document.write( "We are told the first man ate 1/3 of the apples. \n" ); document.write( ". \n" ); document.write( "That means that 2/3 of the apples were left in the bag. \n" ); document.write( ". \n" ); document.write( "We are told the second man ate 1/3 of the apples that he found in the bag. \n" ); document.write( ". \n" ); document.write( "BUT notice that he did NOT eat 1/3 of x apples. \n" ); document.write( ". \n" ); document.write( "He ate 1/3 of the 2/3 of the apples that were left in the bag. \n" ); document.write( ". \n" ); document.write( "1/3*2/3 = 2/9 \n" ); document.write( ". \n" ); document.write( "So the second man ate 2/9 of the x total apples. \n" ); document.write( ". \n" ); document.write( "That means the two men ate a total of 1/3x plus 2/9x, leaving 8 apples in the bag. \n" ); document.write( ". \n" ); document.write( "1/3x + 2/9x = 3/9x + 2/9x = 5/9x \n" ); document.write( ". \n" ); document.write( "However, notice that the above tells us how many apples they ate, not how many apples are left. \n" ); document.write( ". \n" ); document.write( "x - 5/9x is how many apples are left, which is 9/9x - 5/9x = 4/9x. \n" ); document.write( ". \n" ); document.write( "4/9x is how many apples are left. \n" ); document.write( ". \n" ); document.write( "4/9x = 8 \n" ); document.write( ". \n" ); document.write( "4x = 72 \n" ); document.write( "x = 18 \n" ); document.write( ". \n" ); document.write( "Checking our work... \n" ); document.write( "How many apples are 1/3 of 18? \n" ); document.write( "1/3*18 = 6 \n" ); document.write( "So the first man ate 6 apples, leaving 12 in the bag. \n" ); document.write( "How many apples are 1/3 of 12? \n" ); document.write( "1/3*12 = 4 \n" ); document.write( "So the second man ate 4 apples, leaving 8 apples in the bag. \n" ); document.write( "Correct. \n" ); document.write( ". \n" ); document.write( "Answer: \n" ); document.write( "There were 18 apples in the bag originally. \n" ); document.write( ". \n" ); document.write( "Done. \n" ); document.write( " |