document.write( "Question 929021: two birds fly in the same direction if one goes twice as fast as the other and it takes them 3 hours to be 57 miles apart find their speeds \n" ); document.write( "
Algebra.Com's Answer #564056 by TimothyLamb(4379)\"\" \"About 
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x = speed fast bird
\n" ); document.write( "y = speed slow bird
\n" ); document.write( "---
\n" ); document.write( "s = d/t
\n" ); document.write( "---
\n" ); document.write( "relative speed of birds:
\n" ); document.write( "x = 2y
\n" ); document.write( "x - y = 57/3
\n" ); document.write( "2y - y = 57/3
\n" ); document.write( "y = 57/3
\n" ); document.write( "x = 2*57/3
\n" ); document.write( "---
\n" ); document.write( "answer:
\n" ); document.write( "x = speed fast bird = 38 mph
\n" ); document.write( "y = speed slow bird = 19 mph
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