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KatRina [158]
3 years ago
14

2. The average temperature for 3 days was 20°. What must the temperature be on the fourth day to raise the average

Mathematics
1 answer:
DochEvi [55]3 years ago
6 0

Answer:

22

Step-by-step explanation:

20.5x4=82

82-(20x3)=82-60=22

22

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Answer:

See below

Step-by-step explanation:

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  • ->Area of the large rectangle =(6)^2-x^2

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b.

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c.

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There are 8 students in our Math class left to give their presentations. Today
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Answer:

Option A. 56

Step-by-step explanation:

The question talks about chosing 5 presenters out of 8 presenter.

This can be achieved b using the following formula:

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8C5 = 8! / 5! 3!

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8C5 = 56

Therefore, there are 56 ways in which the teacher can chose the presenters.

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