document.write( "Question 207643This question is from textbook
\n" ); document.write( ": a pulley rotates through 75 degrees in 1 min. How many rotations does the pulley make in an hour? \n" ); document.write( "
Algebra.Com's Answer #157028 by Alan3354(69443)\"\" \"About 
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a pulley rotates through 75 degrees in 1 min. How many rotations does the pulley make in an hour?
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\n" ); document.write( "1 hr = 60 mins
\n" ); document.write( "75 degs x 60 = 4500 degs per hour
\n" ); document.write( "4500/360 = 12.5 revolutions
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