Problema Solution
(use the five steps for problem solving)
The average of two quiz scores is 81. If one quiz score is six more than the other quiz scores. what are the two quiz scores
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let x be the score of quiz 1 and y be the score on quiz 2. we know that x=y+6 and (x+y)/2=81 => x+y=162. By replacing x in the second relation we get: y+6+y=162 => 2y=156 => y=78 and x=84.