SOLUTION: Ashley has scored
86
,
67
,
90
,
87
, and
94
on her previous five tests. What score does she need on her next test so that her average (mean) is
84
?
Algebra ->
Average
-> SOLUTION: Ashley has scored
86
,
67
,
90
,
87
, and
94
on her previous five tests. What score does she need on her next test so that her average (mean) is
84
?
Log On
Question 1077377: Ashley has scored
86
,
67
,
90
,
87
, and
94
on her previous five tests. What score does she need on her next test so that her average (mean) is
84
?
You can put this solution on YOUR website! average=total/n
84*6=504 points
424 points has been earned. She needs an 80.
Check
+2 on first test
-17 on second
+6 on third
+3 on fourth
+10 on fifth
+21 and -17, she can be 4 below, which is an 80.
