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Anna35 [415]
4 years ago
14

Solve this problem and show all the step involved.If ad=12and ac=ay_36, find the value of y.Then find ac and DC

Mathematics
1 answer:
pochemuha4 years ago
8 0

Answer:

y = 15

AC = 24

DC = 12

Step-by-step explanation:

Given

AD = 12

AC = 4y - 36

See attachment

Solving for y

From the attachment:

AD = DC

and

AC = AD + DC

Substitute DC for AD

AC = AD + AD

AC = 2AD

Substitute values for AD and AC

4y - 36= 2*12

4y - 36= 24

Collect Like Terms

4y = 36+ 24

4y = 60

Solve for y

y = 60/4

y = 15

AC = 4y - 36

AC = 4 * 15 - 36

AC = 24

AD = DC

DC = AD

DC = 12

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