SOLUTION: Rachel has scored 85 , 92 , 73 , and 85 on her previous four tests. What score does she need on her next test so that her average (mean) is 83 ?

SOLUTION: Rachel has scored 85 , 92 , 73 , and 85 on her previous four tests. What score does she need on her next test so that her average (mean) is 83 ?

Algebra.Com

Question 911337: Rachel has scored
85
,
92
,
73
, and
85
on her previous four tests. What score does she need on her next test so that her average (mean) is
83
?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
x = 5*83 - (85 + 92 + 73 + 83)
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