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gabbyalicorn

  • one year ago

What is the value of the ratio of the surface area to the volume of the right prism? A. 1.9 B. 1.05 C. 0.9 D. 0.53

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  1. gabbyalicorn
    • one year ago
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    |dw:1433371387642:dw| @gaos

  2. anonymous
    • one year ago
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    Look at the figure How many rectangle with 5 in and 4 in does it have?

  3. gabbyalicorn
    • one year ago
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    um 2?

  4. anonymous
    • one year ago
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    Yes, what's the surface area of each of them?

  5. gabbyalicorn
    • one year ago
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    4 x 2 base x hieght

  6. anonymous
    • one year ago
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    Base x height

  7. gabbyalicorn
    • one year ago
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    8

  8. anonymous
    • one year ago
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    Base=4 Height =5 What's the area?

  9. gabbyalicorn
    • one year ago
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    20

  10. anonymous
    • one year ago
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    Yes, each. But we have two rectangle, so the sum of the areas must be....

  11. gabbyalicorn
    • one year ago
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    4 and 5

  12. anonymous
    • one year ago
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    Two rectangle with an area of 20 each, 20+20=???

  13. gabbyalicorn
    • one year ago
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    40

  14. anonymous
    • one year ago
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    Yes, keep this number and let's calculate the second part

  15. gabbyalicorn
    • one year ago
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    k

  16. anonymous
    • one year ago
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    How many rectangle with 5x2 sides are there?

  17. gabbyalicorn
    • one year ago
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    10

  18. anonymous
    • one year ago
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    Yes and there are two of this . So 10+10=???

  19. gabbyalicorn
    • one year ago
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    20

  20. anonymous
    • one year ago
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    And the final part Two rectangle with 4x2 side What's the total area?

  21. gabbyalicorn
    • one year ago
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    8

  22. anonymous
    • one year ago
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    And there are two of these... So 8+8=???

  23. gabbyalicorn
    • one year ago
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    16

  24. anonymous
    • one year ago
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    Now, the final answer... The area of the prism is 16+40+20

  25. gabbyalicorn
    • one year ago
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    76

  26. anonymous
    • one year ago
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    Right, now let's calculate the volume Volume = width x height x base

  27. gabbyalicorn
    • one year ago
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    12,800

  28. anonymous
    • one year ago
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    No, V=5x4x2 V=???

  29. gabbyalicorn
    • one year ago
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    40

  30. anonymous
    • one year ago
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    Right, now let's calculate the percentage How much is 40/76=???

  31. gabbyalicorn
    • one year ago
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    0.526315

  32. gabbyalicorn
    • one year ago
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    D

  33. anonymous
    • one year ago
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    So the answer is letter....

  34. anonymous
    • one year ago
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    Perfect

  35. gabbyalicorn
    • one year ago
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    ^^

  36. gabbyalicorn
    • one year ago
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    D

  37. gabbyalicorn
    • one year ago
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    Thank you!!!!!!!!!!!

  38. gabbyalicorn
    • one year ago
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    wait no it 1.9 ;-;

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