document.write( "Question 1087680: An irrigation pipe 6 in. in diameter has water flowing at the rate of 8 ft. per minute. Determine amount (gal.) delivered per hr. at the end of the pipe.\r
\n" ); document.write( "\n" ); document.write( "Not sure how to proceed. Non-homework.
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Algebra.Com's Answer #701978 by Alan3354(69443)\"\" \"About 
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An irrigation pipe 6 in. in diameter has water flowing at the rate of 8 ft. per minute. Determine amount (gal.) delivered per hr. at the end of the pipe.
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\n" ); document.write( "If 6 in is the ID:
\n" ); document.write( "Cross-sectional area (CSA) = pi*r^2 = 9pi sq inches.
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\n" ); document.write( "8 ft/min = 96 in/min
\n" ); document.write( "Flow rate = CSA*96 = 864pi cubic inches/minute = 0.5pi cubic ft/minute
\n" ); document.write( "= 30pi cubic ft/hr
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\n" ); document.write( "Convert to gallons/hr
\n" ); document.write( "I think it's 7.48 gal/cf
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\n" ); document.write( "Flow rate = 7.48*30pi gal/hr
\n" ); document.write( "= ~ 704.97 gal/hr
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