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jbarber

  • 2 years ago

1. If x+3/3=y+2/2, then x/3 = ____. A. y+1 B. y/3 C. y/2 D. y-1 2.A model is made of a car. The car is 10 feet long and the model is 7 inches long. What is the ratio of the length of the car to the length of the model? A. 10 : 7 B. 7 : 120 C. 120 : 7 D. 7 : 10 3. 4/9=m/54 A. 24 B. 1/24 C. 6 D. 2/3

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  1. RyanL.
    • 2 years ago
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    x+3/3=y+2/2 the left side needs to look like x/3 First we want to isolate x on the left side. What should we do?

  2. jbarber
    • 2 years ago
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    i dont understand

  3. RyanL.
    • 2 years ago
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    Do you know how to multiply?

  4. jbarber
    • 2 years ago
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    yes

  5. RyanL.
    • 2 years ago
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    Multiply both sides by 3

  6. jbarber
    • 2 years ago
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    9

  7. RyanL.
    • 2 years ago
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    lol you don't know how to multiply?

  8. RyanL.
    • 2 years ago
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    Well let's do an easier one first # 3 4/9=m/54 \[\frac{4}{9}=\frac{m}{54}\]

  9. RyanL.
    • 2 years ago
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    Multiply both sides by 54 in order to isolate m on the right side. Can you tell me what you get for m?

  10. jbarber
    • 2 years ago
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    so 54 *4 and 9

  11. RyanL.
    • 2 years ago
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    yes \[\frac{54*4}{9}=m\] can you simplify that?

  12. jbarber
    • 2 years ago
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    486/9=m

  13. jbarber
    • 2 years ago
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    54=m

  14. RyanL.
    • 2 years ago
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    How did you get 486?

  15. jbarber
    • 2 years ago
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    54*4

  16. RyanL.
    • 2 years ago
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    No that doesn't sound right. Do it again.

  17. jbarber
    • 2 years ago
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    216

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