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timama [110]
3 years ago
12

ABC is a straight line.

Mathematics
2 answers:
guapka [62]3 years ago
6 0

Answer:

AB = 20 metres

BC = 60 metres

Step-by-step explanation:

Let AB = x

Then, BC = 3x

<u><em>Condition:</em></u>

=> x+3x = 80

=> 4x = 80

Dividing both sides by 4

=> x = 20

So,

AB = 20 metres

BC = 3(20)

BC = 60 metres

ddd [48]3 years ago
6 0
The length of bc is 60 meters
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If D is the midpoint of CE, CD= 9x-7, and DE= 3x+17, find CE
tatuchka [14]
Hello!

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3 years ago
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3 years ago
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