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30 POINTS PLEASE HELP
What is the value of x?

30 POINTS PLEASE HELP What is the value of x?-example-1

1 Answer

4 votes

Answer:

x = 27

Explanation:

ΔDQC ≈ ΔDBR

set up proportion based on corresponding sides

39/x = 65/18+x

cross-multiply:

39(18+x) = 65x

702 + 39x = 65x

702 = 26x

x = 27

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