SOLUTION: Elsa has scored 75,72,61,and 76 on her previous four tests. What score does she need on her next test so that her average (mean) is 75?
Algebra.Com
Question 927505: Elsa has scored 75,72,61,and 76 on her previous four tests. What score does she need on her next test so that her average (mean) is 75?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
x = 375 - (75+72+61+76)
x = 375 - 284 = 91
RELATED QUESTIONS
Pam scored 71, 61, 90 and 60 on four previous tests. What score does she need to make on (answered by MathLover1)
Mai has scored,72 ,73 ,63 and 74 on her previous four tests. What score does she need on... (answered by mananth,Alan3354,ikleyn)
Christine has scored
76
,
75
,
70
, and
77
on her previous four tests. What... (answered by Boreal)
Linda has scored 93 ,82 , and 72 on her previous three tests. What score does she need on (answered by stanbon,MathLover1)
Ivanna has scored 80,80,and 72 on her previous three tests. What score does she need on... (answered by solver91311)
Lucy has scored 77,72,74,74 and on her previous four tests. What score does she need on... (answered by Alan3354)
Donna has scored
70
,
72 very quicky
,
69
,
75
, and
65
on her previous five (answered by Tatiana_Stebko,greenestamps)
Salma has scored 88,91,75,94 on her previous four tests. What score does she need on her... (answered by swincher4391)
laura has scored 64, 62 and 71 on her previous three tests. What score does she need on... (answered by rfer)