SOLUTION: Manuel has scored 82, 91, 73, 75, and 93 on his previous five tests. What score does he need on his next test so that his average (mean) is 81.
Algebra.Com
Question 763458: Manuel has scored 82, 91, 73, 75, and 93 on his previous five tests. What score does he need on his next test so that his average (mean) is 81.
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
Add all 5 scores = 414
Mean of the 6 scores = 81
6 * 81 = 486
486 - 414 = 72
So, Manuel needs to get 72 for his next test
to achieve a mean of 81
Hope this helps.
:-)
RELATED QUESTIONS
Manuel has scored 76,76, and 90 on his previous three tests. What score does he need on... (answered by ikleyn)
Manuel has scored 80,64,77 and on his previous three tests. What score does he need on... (answered by persian52)
Chang has scored 87,94 ,89 , and 93 on his previous four tests. What score does he need... (answered by TeishaRenee)
Ryan has scored 74,86 ,75 ,69 and on his previous four tests. What score does he need on... (answered by reviewermath)
Hello do you know the averafe of: Kevin has scored
72
,
59
,
93
, and
73
on... (answered by Boreal,MathLover1)
Charlie has scored 89, 78, and 63 on his previous three tests. What score does he need on (answered by ikleyn,greenestamps)
Alan has scored
78
,
93
,
63
,
81
, and
76
on his previous five tests.... (answered by jorel555,Alan3354,acw1213)
Omar has scored 83 ,82 ,86 ,66 and on his previous four tests. What score does he need on (answered by lynnlo)
Ryan has scored , , , and on his previous four tests. What score does he need on his next (answered by Alan3354)