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anonymous

  • one year ago

Ben has an old rectangular banner that is 2 feet by 12 feet. He wants to make a new banner with the same area, but with different dimensions. The area of the banner is 24 square feet . Which dimensions could Ben use? A. L = 20 feet; W = 4 feet B. L = 12 feet; W = 12 feet C. L = 6 feet; W = 3 feet D. L = 8 feet; W = 3 feet

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  1. anonymous
    • one year ago
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    area is l times w so find out which one multiplied equal 24

  2. anonymous
    • one year ago
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    wut * pocker face *

  3. muscrat123
    • one year ago
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    it would be d

  4. jtvatsim
    • one year ago
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    Remember that the area of a rectangle is found by multiplying the (length) x (width) of the rectangle.

  5. muscrat123
    • one year ago
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    bc 8 x 3 = 24

  6. jtvatsim
    • one year ago
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    Since the question tells us the area is 24 feet, and we want a "new banner but with same area" you just need to find the answer choice that makes an area of 24 feet.

  7. muscrat123
    • one year ago
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    yep @jtvatsim

  8. anonymous
    • one year ago
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    uh huh...

  9. jtvatsim
    • one year ago
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    lol, not very convinced I see. :) Is it the "area" part that is confusing?

  10. anonymous
    • one year ago
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    yep :D

  11. jtvatsim
    • one year ago
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    OK, so I guess you could draw a picture and think of it this way...

  12. jtvatsim
    • one year ago
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    |dw:1434057181445:dw| Here's the old rectangular banner.

  13. anonymous
    • one year ago
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    OH

  14. jtvatsim
    • one year ago
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    By "area" we just mean chopping it up into 1-by-1 squares like this.

  15. jtvatsim
    • one year ago
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    |dw:1434057264250:dw|

  16. jtvatsim
    • one year ago
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    Those should all be the same size, sorry bad drawing on my part.

  17. jtvatsim
    • one year ago
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    There are 2 squares per column, and 12 squares per row. That means there are 2 x 12 = 24 squares in all.

  18. anonymous
    • one year ago
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    its ok

  19. jtvatsim
    • one year ago
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    This is why we say that the area is (length) x (width) for rectangles. Make sense so far?

  20. anonymous
    • one year ago
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    yep

  21. jtvatsim
    • one year ago
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    So, now, we want to make a new banner that has the same area (has 24 squares inside).

  22. anonymous
    • one year ago
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    ok

  23. jtvatsim
    • one year ago
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    Well, look at choice A, a 20 by 4 banner... WAY TOO BIG!|dw:1434057484750:dw|

  24. anonymous
    • one year ago
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    |dw:1434057558836:dw|

  25. jtvatsim
    • one year ago
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    If you try B, 12 x 12 = 144 squares even worse!

  26. muscrat123
    • one year ago
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    its d

  27. jtvatsim
    • one year ago
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    C, is no good either, 6 x 3 = 18 squares... too small!

  28. anonymous
    • one year ago
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    |dw:1434057628806:dw|

  29. jtvatsim
    • one year ago
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    We have no other choice but D, and in fact, 8 x 3 = 24 squares... perfect! lol

  30. jtvatsim
    • one year ago
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    That clear things up?

  31. muscrat123
    • one year ago
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    very good explanation @jtvatsim

  32. anonymous
    • one year ago
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    |dw:1434057706865:dw|

  33. jtvatsim
    • one year ago
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    lol

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