anonymous
  • anonymous
Can someone explain this to me because I'm confused. http://prntscr.com/171l1o
Mathematics
schrodinger
  • schrodinger
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mathstudent55
  • mathstudent55
The key to this problem is that the figures are similar. The lengths of corresponding sides of similar figures are in proportion.
mathstudent55
  • mathstudent55
6x corresponds to 18, and 5x + 10 corresponds to 20 Write a proportion and solve it.
anonymous
  • anonymous
Uhh, would it be 6x/18 = 5x/10?

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zepdrix
  • zepdrix
\[\large \frac{6x}{18}=\frac{5x+10}{20}\] I think you had the right idea, I'm just not sure what happened on the right side.
mathstudent55
  • mathstudent55
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anonymous
  • anonymous
|dw:1369721843034:dw|
mathstudent55
  • mathstudent55
yes
anonymous
  • anonymous
Now I just solve forx?
mathstudent55
  • mathstudent55
yes
anonymous
  • anonymous
This one would be 9/3x = 8/x + 5, correct? http://prntscr.com/171mgs
mathstudent55
  • mathstudent55
yes

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