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Zielflug [23.3K]
3 years ago
10

Rachel has scored 98, 83, and 68 on her previous three tests. What score does she need on her next test so that her average (mea

n) is 82?
Mathematics
2 answers:
Eva8 [605]3 years ago
7 0

Answer:

79

Step-by-step explanation:

Sum of 4 test for Average of 82 must be 82 x 4 which is 328.

Subtract previous 3 scores from 328:

328 - (98 + 83 + 68)

328 - 249 = 79

She needs a 79

sergey [27]3 years ago
5 0

Answer:Write the equation of this geometric sequence and find the value of the 9th term.

1/3, 1, 3, 9...

F(n)=

F(9)=

Step-by-step explanation:

You can put this solution on YOUR website!

The total of Jenny's 5 tests = 375

If she wants an average of 77 then

her 6 tests must total 6 x 77 = 462

462 - 375 = 87 which is what Jenny

must score on the sixth test for an

average of 77.

:-)

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