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anonymous

  • one year ago

help please!

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  1. anonymous
    • one year ago
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    @rishavraj

  2. Astrophysics
    • one year ago
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    What's the question?

  3. anonymous
    • one year ago
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    im gonna post it now, give me a sec :)

  4. anonymous
    • one year ago
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    Kelly was building a bed for her dollhouse. She used her bed, which is 4 feet × 6 feet, as a guide. She scaled down the dimensions of her bed by a factor 1 over 5. What are the dimensions of the model bed she built? 0.8 foot × 1.2 feet 0.4 foot × 0.6 foot 0.08 foot × 0.12 foot 0.04 foot × 0.06 foot

  5. anonymous
    • one year ago
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    @rishavraj

  6. Astrophysics
    • one year ago
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    |dw:1438409758922:dw| just multiply the dimensions by 1/5.

  7. Michele_Laino
    • one year ago
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    hint: you have to multiply the dimensions of the bed of Kelly by a factor 1/5= 0.2

  8. anonymous
    • one year ago
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    so i do... 4 x 1.5 and 6 x 1.5?

  9. Astrophysics
    • one year ago
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    It's 1/5 not 1.5

  10. Michele_Laino
    • one year ago
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    hint: 4*(0.2)=... 6*(0.2)=...

  11. anonymous
    • one year ago
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    ok so i divide it 4 / 1/5 .. like that?

  12. Michele_Laino
    • one year ago
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    hint: 4*(1/5)=...? 6*(1/5)=...?

  13. Astrophysics
    • one year ago
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    \[4 \times \frac{ 1 }{ 5 } = \frac{ 4 }{ 5 } ft\] do so similarly with the other, but you could also do it the way Michele has showed you \[\frac{ 1 }{ 5 } = 0.2\] so you can do 4*(0.2) and 6*(0.2)

  14. anonymous
    • one year ago
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    oh ok :)

  15. anonymous
    • one year ago
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    i got 0.8 and 1.2

  16. Astrophysics
    • one year ago
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    Yeah

  17. anonymous
    • one year ago
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    ok yay!

  18. anonymous
    • one year ago
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    next question :)

  19. anonymous
    • one year ago
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    The seventh-grade class is building target areas for a PE activity. The bases for the game will be circular in shape. The diameter of each circle is 5 feet. Approximately how many square feet of the turf need to be painted for a base circle? Use 3.14 for π and round your answer to the nearest tenth. 15.7 square feet 19.6 square feet 42.8 square feet 78.6 square feet

  20. Astrophysics
    • one year ago
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    Ok so draw a diagram and label it first

  21. anonymous
    • one year ago
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    how

  22. anonymous
    • one year ago
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    @Astrophysics

  23. anonymous
    • one year ago
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    i got 9.4

  24. anonymous
    • one year ago
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    @Astrophysics

  25. anonymous
    • one year ago
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    Im thinking it's 6ft∗π it's 9.4 6ft*pi/2=9.42=9.4 @Astrophysics

  26. Astrophysics
    • one year ago
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    Where is the 6ft coming from? Do you really think that is true, check your answer choices, it's not even an option

  27. anonymous
    • one year ago
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    no i think the answer is 9.4

  28. Astrophysics
    • one year ago
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    You're just looking for the area of a circle \[A = \pi r^2\] where r is the radius, which is half the diameter.

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