document.write( "Question 859393: A veterinarian examined 4 times as many dogs as cats today. In all, he examined 15 dogs and cats.\r
\n" ); document.write( "\n" ); document.write( "How many dogs and cats did he examine?
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Algebra.Com's Answer #517737 by Awesom3guy(31)\"\" \"About 
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He examined 4 times as many dogs as cats.
\n" ); document.write( "So the number of dogs is 4 times the number of cats.
\n" ); document.write( "\"d+=+4c\"\r
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\n" ); document.write( "\n" ); document.write( "And, dogs and cats TOGETHER added up to 15.
\n" ); document.write( "So:
\n" ); document.write( "\"d+%2B+c+=+15\"
\n" ); document.write( "But we know that dogs outnumber cats by 4 times, so:
\n" ); document.write( "\"4c+%2B+c+=+15\"
\n" ); document.write( "Now we can easilly figure out the number of cats.
\n" ); document.write( "Add the c variables:
\n" ); document.write( "\"5c+=+15\"\r
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\n" ); document.write( "\n" ); document.write( "\"c+=+15%2F5+=+3\"\r
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\n" ); document.write( "\n" ); document.write( "He examined 3 cats.\r
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\n" ); document.write( "\n" ); document.write( "Since he examined 4 times more dogs than cats, we know right away that he examined 3*4 = 12 dogs.
\n" ); document.write( "Check in your head: the number of dogs and cats should be 15 together.
\n" ); document.write( "12 + 3 = 15.
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