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anonymous

  • one year ago

Math help please ! Question in comments

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  1. anonymous
    • one year ago
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    In trapezoid ABCD, E and F are the midpoints of the sides. If CD = 9, EF = 4x, and AB = 5x + 5/3, what is the value of x? Round the answer to the nearest hundredth. A. 3.15 B. 3.56 C. 4.67 D. 10.67

  2. anonymous
    • one year ago
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  3. Loser66
    • one year ago
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    You have a property of this too.

  4. Loser66
    • one year ago
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    It says \(EF = \dfrac{CD+ AB}{2}\) Replace the given information in and solve for x

  5. anonymous
    • one year ago
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    \[4x = \frac{ 9 + 5x + \frac{ 5 }{ 3 }}{ 2 }\]

  6. Loser66
    • one year ago
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    yup

  7. Loser66
    • one year ago
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    now, solve for x

  8. anonymous
    • one year ago
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    How ._.

  9. anonymous
    • one year ago
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    I'm bad at math sorry

  10. anonymous
    • one year ago
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    @Loser66

  11. Loser66
    • one year ago
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    *2 both sides, what do you get? btw, I am suck at math also.

  12. anonymous
    • one year ago
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    9 * 2 is 18 I know that much ._.

  13. anonymous
    • one year ago
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    @Loser66

  14. Loser66
    • one year ago
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    \[2*4x = \cancel 2*\frac{ 9 + 5x + \frac{ 5 }{ 3 }}{ \cancel 2 }\]

  15. Loser66
    • one year ago
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    It is???

  16. anonymous
    • one year ago
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    8x = 9 + 5x + 5/3

  17. Loser66
    • one year ago
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    ok, combine like term from the right hand side, what do you have?

  18. anonymous
    • one year ago
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    9 + 13x + 5/3

  19. Loser66
    • one year ago
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    9 + 5/3 =??

  20. Loser66
    • one year ago
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    9 = 27 /3, right?

  21. Loser66
    • one year ago
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    so 27/3 + 5/3 = 32/3, right?

  22. Loser66
    • one year ago
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    hence, it is 8x= 5x + (32/3)

  23. Loser66
    • one year ago
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    Now, -5x both sides,

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