Wednesday, April 6, 2011

POW! (Problem of the Week) 4/4/2011

Read the following problem. Post the solution and an explanation of how you found your answer. The first correct post and explanation (by Friday's math class) will earn $5.00 in your math class checkbook.

Jane is a famous racecar driver! She just loves to drive. Jane's car traveled 120 miles during the first race. During the second race, it traveled 124 miles. If Jane's car averaged 123 miles over the first three races...How far did it travel during the third race?

6 comments:

  1. I think the answer is 128 because it lookes like Jane inproves 4 laps each time she races!!
    Lindsey Leugth:)

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  2. i think the answer is 125. because if on avrage it was 123 then half of 5 is abought 3 so 123+2=125
    Lindsey Length:)

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  3. Lindsey Length, 125 miles sounds pretty good to me, but I need a more exact process for how you got there...What would your work look like?

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  4. My work is this:
    so i know that3 is half of 5
    and also that i do not have any number i have to bring over to the tens place or the hundreds place. so: 120
    +__3
    123 and then i also know that 123 is on avrage Janes raceing then 125 is the exact number. also to add to what i put up last night 123+2=125 and i got the 2 from that you can count from twos and get four which Jane travled in the second race and that is how i got my anwser!!!!
    Lindsey Leugth:)

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  5. Congrats Lindsey Length! You are the first to post a correct solution and explanation! Keep up the good work!

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  6. thankes mrs Colcord!!!
    Lindsey Length:)

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