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AveGali [126]
2 years ago
15

I’m not sure if i’m right

Mathematics
1 answer:
Nataliya [291]2 years ago
3 0

Answer:

A. 20

Step-by-step explanation:

To solve this you must know that the angles marked are vertical angles and are congruent. So, you should set them equal to each other

x+40=3x

you would subtract x from both sides

40=2x

and then divide 2 from both sides

20=x

hope this helped!

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Given that in the year 2015 Emily was three times as old as Kaitlin while by the year 2021 Kaitlin will be half as old as Emily will be, to determine how old was Emily on the year 2000 the following calculation must be performed:

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Therefore, in 2000 Emily was 9 years old.

Learn more in brainly.com/question/20025195

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