document.write( "Question 815519: a videotape plays 6.72 ft per minute for 2 hours at standard speed. It plays for 6 hours at extended long play speed. What is the rate of the tape at the slower speed? \n" ); document.write( "
Algebra.Com's Answer #491049 by TimothyLamb(4379)\"\" \"About 
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r = d / t
\n" ); document.write( "d = r * t
\n" ); document.write( "---
\n" ); document.write( "d = 6.72 ft/min * ( 2 hr * 60 min/hr )
\n" ); document.write( "d = 806.4 ft of tape
\n" ); document.write( "---
\n" ); document.write( "at the slower speed:
\n" ); document.write( "r = d / t
\n" ); document.write( "r = 806.4 ft / ( 6 hr * 60 min/hr )
\n" ); document.write( "---
\n" ); document.write( "Answer:
\n" ); document.write( "r = 2.24 ft/min
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