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Mamont248 [21]
3 years ago
14

Need help

Mathematics
1 answer:
I am Lyosha [343]3 years ago
5 0

Answer:

see in the graph, the circle has: the centre I(3; -2)

r = 3

=> the equation: (x - 3)² + (y + 2)² = 9

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If sally got 28 questions correct and received 70% on the exam, how many questions were on the exam
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Answer: 40

Step-by-step explanation:

Number of correct questions Sally got = 28 questions

Percentage of correct questions answered= 70% on the exam,

Total number of questions in the exam = Unknown

Let the total questions in the exam be represented as y.

Since Sally got 70% correctly, this will be:

70% of y = 28

70/100 × y = 28

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0.7y = 28

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