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nekit [7.7K]
3 years ago
13

Mrs.gitterman gave a quiz to each of her three math classes. Each of her classes have 12 students. When she found the mean for e

ach class, she was surprised to see that the mean for each class was 80%. However looking at individuals scores, she found that the distribution of scores in each class looked very different.
Mathematics
2 answers:
kodGreya [7K]3 years ago
6 0

Answer:

4

Step-by-step explanation:

Ivahew [28]3 years ago
3 0

Answer:

4

Step-by-step explanation:

4

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Fudgin [204]

Answer:

20x+9y

Step-by-step explanation:

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4 0
3 years ago
at noon joice drove to the lake at 30 mi. per hour, but she made a long walk back at 4 mi. per hour. how long did she walk ifshe
Kryger [21]
Distance = 30 mph * time
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distance = 30 mph * t
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Since distance is equal then
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t = 2 hours

We see the return trip time is (17 -t ) which is 15 hours.
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Double Check
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3 years ago
Find a rational number and an irrational number that are between 5.2 and 5.5. Include the decimal approximation of the irrationa
mote1985 [20]

Answer:

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Step-by-step explanation:

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if 16 friends went on a trip and it was 200 miles away how many miles would it take to split the trip into 16 parts?
dalvyx [7]
12.8 miles would take the 16 friends to split the trip into 16 parts
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