document.write( "Question 886924: Mark works 'w' hours on Monday, 'x' hours on Tuesday, 'y' hours on Thursday, and 'z' hours on Friday. Write an equation that will find the average number of hours Mark worked on those four days. Thanks! \n" ); document.write( "
Algebra.Com's Answer #536239 by Alan3354(69443)\"\" \"About 
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(w+x+y+z)/4
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