document.write( "Question 1129969: a standard school day will average at least 5 1/2 hours, excluding meal breaks. for the first four days of one week school, bad weather resulted in school days of four hours, 6 1/2 hours, 3 1/2 hours and 6 1/2 hours. how long must the friday school day be in order to average at least 5 1/2 hours for the week \n" ); document.write( "
Algebra.Com's Answer #746602 by josgarithmetic(39616)\"\" \"About 
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