17-09-2019
Mathematics

contestada

D is the midpoint of CE . If CD = 5x and CE = 9x + 8, what is CD?

D is the midpoint of CE If CD 5x and CE 9x 8 what is CD class=

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sqdancefan sqdancefan

17-09-2019

Answer:

CD = 40

Step-by-step explanation:

Since D is the midpoint, the entire length CE is twice the length of CD, so we have ...

2×CD = CE

2×(5x) = 9x +8

x = 8 . . . . . . . . subtract 9x and simplify

Then the length of CD is ...

CD = 5x = 5·8 = 40

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