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AVprozaik [17]
2 years ago
5

What is the value of x? Enter your answer in the box. x =

Mathematics
1 answer:
Montano1993 [528]2 years ago
4 0

Answer:

x=9

Step-by-step explanation:

We have two similar triangles because both lines are parallel, use proportions to solve:

\frac{72}{9} =\frac{56}{3x-20}\\8=\frac{56}{3x-20}\\8(3x-20)=56\\3x-20=7\\3x=27\\x=9

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