SOLUTION: Lisa has scored
64
,
86
, and
84
on her previous three tests. What score does she need on her next test so that her average (mean) is
79
?
Algebra ->
Average
-> SOLUTION: Lisa has scored
64
,
86
, and
84
on her previous three tests. What score does she need on her next test so that her average (mean) is
79
?
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Question 996315: Lisa has scored
64
,
86
, and
84
on her previous three tests. What score does she need on her next test so that her average (mean) is
79
? Found 2 solutions by rfer, Alan3354:Answer by rfer(16322) (Show Source):
You can put this solution on YOUR website! Lisa has scored
64
,
86
, and
84
on her previous three tests. What score does she need on her next test so that her average (mean) is
79
?
===========
64 + 86 + 84 = 234
---
79*4 = 316
316 - 234 = what she needs.
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