document.write( "Question 478443: how many positive integers less than 1000 are?divisible by7?,divisible by 7 but not by 11?,divisible by both 7 and 11?,divisible by either 7 or 11?,divisible by exactly by one of 7 and 11?\r
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Algebra.Com's Answer #327813 by robertb(5830)![]() ![]() You can put this solution on YOUR website! The number of positive integers n less than 1000 that are divisible by 7: \n" ); document.write( "[1000/7] = 142\r \n" ); document.write( "\n" ); document.write( "The number of positive integers divisible by both 7 and 11 are those that are divisible by 77: \n" ); document.write( "[1000/77] = 12\r \n" ); document.write( "\n" ); document.write( "==> The number of positive integers divisible by 7 but not by 11 is 142 - 12 = 130.\r \n" ); document.write( "\n" ); document.write( "The number of positive integers less than 1000 that are divisible by 11: \n" ); document.write( "[1000/11] = 90 \n" ); document.write( "==>the number of positive integers less than 1000 that are divisible by either 7 or 11 is 142 + 90 - 12 = 220.\r \n" ); document.write( "\n" ); document.write( "==>the number of positive integers less than 1000 that are divisible by exactly by one of 7 and 11 is 220 - 12 = 208. \n" ); document.write( " \n" ); document.write( " |