document.write( "Question 1210402: There are 30 legs in my backyard but I'm counting dogs and kids.How many kids and dogs are in my backyard? \n" ); document.write( "
Algebra.Com's Answer #852235 by greenestamps(13203)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "It should be clear from the given statement of the problem that there are many possible answers for the number of dogs. \n" ); document.write( "Each dog has 4 legs; each kid has 2. Those are both even numbers, so the total number of legs for any numbers of dogs and kids will be even. \n" ); document.write( "2 is the smallest even number, so you could have a total of 30 legs with only kids. \n" ); document.write( "30 is not a multiple of 4, so you can't get a total of 30 legs with only dogs. \n" ); document.write( "Obviously the number of dogs and the number of kids must be non-negative integers. \n" ); document.write( "So the number of dogs can be any non-negative integer for which the total number of dog legs is less than 30. \n" ); document.write( "ANSWER: The number of dogs can be any integer from 0 to 7 inclusive. \n" ); document.write( " \n" ); document.write( " |