Answer:
i) is irrational and ii) is rational
Step-by-step explanation:
i) does not keep a consistent pattern. If it was .11011011011.... it would be a rational number, but since it keeps changing its pattern it would be considered irrational. ii) is rational because it has a consistent pattern that doesn't change.
Answer: There are 5 red pencils, 16 blue pencils and 23 brown pencils.
Step-by-step explanation:
Since we have given that
Number of red pencils = 5
Number of blue pencils are 11 more than red pencils.
So, Number of blue pencils would be

Number of brown pencils are 7 more than blue pencils.
So, number of brown pencils would be

Hence, there are 5 red pencils, 16 blue pencils and 23 brown pencils.
Answer:
The answer is C. Annie didn't make a mistake.
Step-by-step explanation:
To get k, we subtract 7.5 from both sides of the equation.
10 - 7.5 equals 2.5.
So, Annie is correct.
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