Triangle ABC is similar to triangle DEC. What is the length of DE?

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5.25

Explanation:

first find total length of BC, which is 16

Then you do 7/16 which is the scaling proportion.

Then you do 12 x 7/16 = 5.25

I hope this helped!

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- Zack Slocum

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4.08%

step-by-step explanation:

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0