## SephI Group Title Can someone explain this to me because I'm confused. http://prntscr.com/171l1o one year ago one year ago

1. mathstudent55 Group Title

The key to this problem is that the figures are similar. The lengths of corresponding sides of similar figures are in proportion.

2. mathstudent55 Group Title

6x corresponds to 18, and 5x + 10 corresponds to 20 Write a proportion and solve it.

3. SephI Group Title

Uhh, would it be 6x/18 = 5x/10?

4. zepdrix Group Title

$\large \frac{6x}{18}=\frac{5x+10}{20}$ I think you had the right idea, I'm just not sure what happened on the right side.

5. mathstudent55 Group Title

|dw:1369721665425:dw|

6. SephI Group Title

|dw:1369721843034:dw|

7. mathstudent55 Group Title

yes

8. SephI Group Title

Now I just solve forx?

9. mathstudent55 Group Title

yes

10. SephI Group Title

This one would be 9/3x = 8/x + 5, correct? http://prntscr.com/171mgs

11. mathstudent55 Group Title

yes