document.write( "Question 551399: Schools often have a section of street called a school zone located near their entrances. In a school zone, driving speeds are reduced at certain times of the day. If a school zone is 0.3 miles long, how many minutes longer does it take to drive through it at 20 miles per hour that at 30 miles per hour? \n" ); document.write( "
Algebra.Com's Answer #359708 by Theo(13342)\"\" \"About 
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20 miles per hour times 5280 equals 105600 feet per hour divided by 60 equals 1760 feet per minute divided by 60 equals 29.3333333333 feet per second.
\n" ); document.write( "30 miles per hour times 5280 equals 158400 feet per hour divided by 60 equals 2640 feet per minute divided by 60 equals 44 feet per second.
\n" ); document.write( ".3 of a mile is equal to .3 * 5280 = 1584 feet.
\n" ); document.write( "at 20 miles per hour you are traveling 29.3333333333 feet per second.
\n" ); document.write( "divide 1584 feet by 29.3333333333 feet and you get 54 seconds.
\n" ); document.write( "at 30 miles per hour you are traveling 44 feet per second.
\n" ); document.write( "divide 1584 feet by 44 and you get 36 seconds.
\n" ); document.write( "it takes about 18 seconds more to go through the school zone at 20 miles per hour than it takes to go through the school zone at 30 miles per hour.
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