9_-_review_R115.pdf - Part II Answer all 8 questions in...

25 Ms. Fox asked her class “Is the sum of 4.2 and rational or irrational?” Patrick answered that
the sum would be irrational.
State whether Patrick is correct or incorrect. Justify your reasoning.
2
Part II
Answer all 8 questions in this part. Each correct answer will receive 2 credits. Clearly
indicate the necessary steps, including appropriate formula substitutions, diagrams, graphs,
charts, etc. For all questions in this part, a correct numerical answer with no work shown will
receive only 1 credit. All answers should be written in pen, except for graphs and drawings,
which should be done in pencil. [
16
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Algebra I (Common Core) – Jan. ’15
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26 The school newspaper surveyed the student body for an article about club membership. The table
below shows the number of students in each grade level who belong to one or more clubs.
If there are 180 students in ninth grade, what percentage of the ninth grade students belong to
more than one club?
1 Club 2 Clubs 3 or More Clubs
9
th 90 33 12
10
th 125 12 15
11
th 87 22 18
12 th 75 27 23