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Mathematics 21 Online
OpenStudy (anonymous):

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

OpenStudy (mathstudent55):

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

OpenStudy (mathstudent55):

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

OpenStudy (anonymous):

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

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.

OpenStudy (mathstudent55):

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