document.write( "Question 493254: 1. The hummingbird has an average wing speed of 90 beats per second. The
\n" ); document.write( " expression 90t gives the number of wing beats in t seconds. Calculate the
\n" ); document.write( " number of wing beats in 1 hour for the hummingbird.\r
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Algebra.Com's Answer #335328 by deborabr(181)\"\" \"About 
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T=beats
\n" ); document.write( "90t*60=5400t is the beat per minute
\n" ); document.write( "90t*60^2=90t*3600=324000t is the beat per hour
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