Saturday, March 31, 2018

POTW #25 - Caribou this week

Please remember to BYOD for Caribou this Wednesday (if you can).

POTW #24 Solution:


POTW #25 Question:


7 comments:

  1. 150 students are in the running club and the environment club. Work is done on paper.

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  2. Grade 7/8 POTW
    55% joined aerobics
    68.75% joined math and aerobics
    40% joined aerobics and environmental
    To solve this, you just find the other half.
    55% joined aerobics
    100 - 55 = 45
    45% joined running
    500 x 0.55 = 275
    500 x 0.45 = 225
    68.75% in math joined aerobics
    100 - 68.75 = 31.25
    31.25% in math joined running
    40% in aerobics joined environmental
    100 - 40 = 60
    60% in aerobics joined math
    Let's just review so far information (plus a bit more calcultions)
    225 people in running
    275 people in aerobics
    165 people in aerobics and math
    110 people in aerobics and environmental
    75 people in running and math
    225 - 75 = 150
    150 students joined the running club and environment club.

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  3. POTW:
    - 500 students
    - aerobics or running
    - 55%= aerobics
    - 68 3/4% = math and aerobics
    - 40%= aerobics were in environment club.
    - find the number of students who siged up for the environment club and running club.

    55% for aerobics means 45% for running. If 55% of students are in aerobics, that means that the remaining 45% would have joined running class.
    500 x 0.55=275
    500 x 0.45=225
    To find the number of students per class, the percentage must be converted into a decimal and multiplied with the number of students.
    aerobics: 275
    running: 225
    68 3/4% joined math and aerobics
    31 1/4% joined math and running
    Same thing here. If 68 3/4% joined math and aerobics, then the remaining 31 1/4% joined math and running.
    40% in aerobics and environment club.
    60% in aerobics and environment club.
    And here. If 40% joined aerobics and environment club, the remaining 60% joined aerobics and environment.
    If we multiply all the percentages to the total number of students, we get:
    275 in aerobics
    225 in running
    165 in aerobics and math
    110 in aerobics and environment
    75 in running and math
    If we subtract the total number of students in running and the number in running and math, we get 150.
    :D

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  4. Grade 8 POTW:

    https://docs.google.com/document/d/1Q6eTTob9ozzsX21xtl0wAgE6EMXTuuAXu2U9diol4KA/edit

    There were a total of 150 students who joined the running and environment club. My work is on the document.

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  5. Grade 8 POTW

    150 students from UR high school joined both the running and environment clubs. I did my work on paper.

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  6. 150 students joined the running class and environment club.

    ReplyDelete
  7. Catch Up
    (I completed this a while ago but forgot to submit an answer, whoops)
    A total of 150 students joined the environment club and the running class.

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