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KiRa [710]
2 years ago
15

Can someone explain how to do this? thank you

Mathematics
1 answer:
ella [17]2 years ago
7 0

Answer:

В (50°)

Step-by-step explanation:

m∠XWY=180-95=85°

x=180-(m∠XWY+m∠XYW)=180-(85+45)=50°

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Deanna gets 3 problems incorrect on a math quiz. Her score is 85%. How many questions are on the quiz?
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Answer:

20 questions.

Step-by-step explanation:

Let  x  be the number of questions on the quiz.

85 %  means  85  out of  100  (or  85/ 100  )

85/ 100   = 3/x

--->100-85=15

--->15/3=5

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Meaning each question was worth 5% and there were 20 questions.

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Step-by-step explanation:

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Answer:

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