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anonymous

  • one year ago

6TH GRADE QUESTION!!! Which of the following expressions can be used to find the area of a square with a side length of fraction 1 over 5 m? fraction 1 over 5 whole cubed m2 fraction 1 over 5 whole squared m2 fraction 1 over 5 multiplied by 2 m2 2 multiplied by fraction 1 over 5 m2

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  1. anonymous
    • one year ago
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    |dw:1433628279086:dw|

  2. anonymous
    • one year ago
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    |dw:1433628455059:dw|

  3. anonymous
    • one year ago
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    |dw:1433628496068:dw|

  4. anonymous
    • one year ago
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    |dw:1433628591443:dw|

  5. doc.brown
    • one year ago
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    I like the question, by using the word "whole" your teacher is reminding you that it takes 5 parts to make a whole side, but you only have one part. Never mind that, I'll help with your question.

  6. doc.brown
    • one year ago
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    Let's say you have a square that has a length of 1m, how many one meter squares do you have?|dw:1433631978841:dw|

  7. doc.brown
    • one year ago
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    The language is the sneaky part here, if you were to say you had one "one meter square", you would also be saying you have one squared meter. When you say one meter (\(1m\)) you're really saying one times one meter (\(1\times m\)). If you were to multiply the base times the height, or the length times the width, or the x by the y, you end up with\[1m\times 1m\]\[1\times m\times 1\times m\]\[1\times 1\times m\times m\]\[1m^2\]One meter "squared".

  8. doc.brown
    • one year ago
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    Make the sides 2m and tell me how many squares you have.|dw:1433632835577:dw|

  9. doc.brown
    • one year ago
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    \[2m\times 2m\]\[2\times 2\times m\times m\]\[4m^2\]

  10. doc.brown
    • one year ago
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    |dw:1433633020274:dw|\[3m\times 3m\]\[3\times 3\times m\times m\]\[9m^2\]

  11. doc.brown
    • one year ago
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    |dw:1433633185262:dw|\[\frac15m\times\frac15m\]Count it if you' like, you'll see it's one twenty-fifth of the squared meter. Or\[\left(\frac15\right)^2m^2\]

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