SOLUTION: A Student has two test scores. The difference between the scores is 12 and the mean, or average of the scores is 80. what are the two scores?
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Question 416997: A Student has two test scores. The difference between the scores is 12 and the mean, or average of the scores is 80. what are the two scores? Answer by ewatrrr(24785) (Show Source):
Hi
difference between the scores is 12
Let x and (x-12) represent the two scores
Question states***
[x + (x-12]/2 = 80
Solving for x
[x + (x-12] = 160
2x = 172
x = 86 the two scores 74 and 86
CHECKING our Answer***
(74 + 86)/2 = 160/2 = 80