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Maru [420]
3 years ago
15

Your friend has improved in his math class. On his first test he scored 50 points, and then he scored 53, 56, 59, and 62 points

on his next 4 tests. His tests continued to improve following this pattern. If he took 15 tests, how many points did he score on the last test?
Mathematics
1 answer:
emmainna [20.7K]3 years ago
3 0

Answer:

Step-by-step explanation: I think you skip count by 50s or something like that. So, it has to be 64.

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Answer:

5.6

Step-by-step explanation:

Sheryl got the following scores on her spelling tests.

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Mean = sum of all observations/ Number of observations

Sum of all observations =95+89+99+85+82=450

Number of observations = 5

So,

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Let M denotes the mean

Mean absolute deviation =\frac{\sum_{i=1}^{n}\left | x_i-M \right |}{n}

Put n=5

So,

Mean absolute deviation =\frac{\sum_{i=1}^{5}\left | x_i-M \right |}{5}=\frac{|95-90|+|89-90|+|99-90|+|85-90|+|82-90|}{5}=\frac{5+1+9+5+8}{5} =\frac{28}{5}=5.6

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-3m-1<-10 or -4+2m<-14
Liono4ka [1.6K]

Answer:

m>3 or m<-5

Step-by-step explanation:

First simplify -3m-1 < -10:

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