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jarptica [38.1K]
3 years ago
7

All 5 students in Mrs. Awful's class got a 50 on the test. For the next test, one of the students got 100 but the remaining 4 st

ill got 50. What was the average grade in the class now?
Mathematics
1 answer:
Anarel [89]3 years ago
5 0

Data on first test: 50, 50, 50, 50, 50
Mean = 250 / 5 = 50

In the next test, Data is: 50, 50, 50, 50, 100

Mean = sum of data / number of data
Mean = 50 + 50 + 50 + 50 + 100 / 5
M = 300 / 5
M = 60

In short, Your Answer would be 60

If You're looking for combined progress (average of class then, it would be: 50 + 60 /2 = 110/2 = 55

Hope this helps!
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3 years ago
The expression means the product of 5 and the difference of three times r minus 10. If r = 4, the value of the expression is .
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Answer:

10

Step-by-step explanation:

"three times r" = 3r

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= 5 (3r - 10)

given that r = 4,

the expression becomes

5 (3r - 10)

= 5 [3(4) - 10]

= 5 [12 - 10]

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3 years ago
Kim is reading a book with 380 pages. She read 20 pages each day until she reached Part 2 of the book. Part 2 of the book is 160
d1i1m1o1n [39]
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3 years ago
Read 2 more answers
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Aleks [24]

Sum of 5 numbers = 39*5 = 195

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median = 40

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3 0
3 years ago
(1/4)^(2m)=64^m <br> Help please
Marrrta [24]

Answer:

I think the answer is m = 0

Step-by-step explanation:

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- 10m = 0   Divide both sides by - 10

m = 0

8 0
3 years ago
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