Tuesday, June 7, 2011

POW! (Problem of the Week 9) 6/7/2011

Read the following problem. Post a solution AND a specific explanation of how you found your answer. The first correct post and explanation (by Friday's math class) will earn $5.00 towards your math class checkbooks. Good luck!






Devin Denominator studied hard for his tests last week. He answered 90% of the math test questions and 80% of the history test questions correctly. If each test had 50 questions, how many questions did Devin answer correctly?

2 comments:

  1. on the math test he answered 45 of the questions correctly. I multiplied 50 times .9.
    then I got my answer of 45.
    On the history test he got 40 of the answers correct. I got my answer by multiplying 50 times .8. i turned the % into a decimal.
    Equvilent Erika

    ReplyDelete
  2. Terrific work, Equivalent Erika! I like how clearly you explained your process.

    -Mrs. Computation Colcord

    ReplyDelete

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