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SephI

  • 2 years ago

Can someone explain this to me because I'm confused. http://prntscr.com/171l1o

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  1. mathstudent55
    • 2 years ago
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    The key to this problem is that the figures are similar. The lengths of corresponding sides of similar figures are in proportion.

  2. mathstudent55
    • 2 years ago
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    6x corresponds to 18, and 5x + 10 corresponds to 20 Write a proportion and solve it.

  3. SephI
    • 2 years ago
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    Uhh, would it be 6x/18 = 5x/10?

  4. zepdrix
    • 2 years ago
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    \[\large \frac{6x}{18}=\frac{5x+10}{20}\] I think you had the right idea, I'm just not sure what happened on the right side.

  5. mathstudent55
    • 2 years ago
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    |dw:1369721665425:dw|

  6. SephI
    • 2 years ago
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    |dw:1369721843034:dw|

  7. mathstudent55
    • 2 years ago
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    yes

  8. SephI
    • 2 years ago
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    Now I just solve forx?

  9. mathstudent55
    • 2 years ago
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    yes

  10. SephI
    • 2 years ago
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    This one would be 9/3x = 8/x + 5, correct? http://prntscr.com/171mgs

  11. mathstudent55
    • 2 years ago
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    yes

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