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3 years ago

8

harry kept a weather journal for September The sun was shining on 4 out of every 5days on what percent of the days was not shini

ng

2 answers:

pogonyaev3 years ago

6 0

Answer: 20

Step-by-step explanation:

stiks02 [169]3 years ago

3 0

Answer: 20%
explanation: 5 x 4 = 20

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What is the average of two opposite numbers?

Kryger [21]

Answer:

0

Step-by-step explanation:

So lets imagine x as our number

Let's make an equation:

$Average=\frac{x-x}{2} \\Average=\frac{o}{2} \\Average=0$

So, This would mean that the average of two opposite numbers is always 0

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4 years ago

Evaluate 3x - 4y + 11 for x = -2 and y = -1

katrin [286]

Answer:

9

Step-by-step explanation:

Plug in -2 for x, and -1 for y, and solve:

3x - 4y + 11

3(-2) - 4(-1) + 11

Remember to follow PEMDAS. First, multiply. Remember, that when you multiply:

2 positive signs will result in a positive answer.

1 positive & 1 negative will result in a negative answer.

2 negative will result in a positive answer.

3 * -2 = -6

-4 * -1 = 4

-6 + 4 + 11 = 9

9 is your answer.

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3 years ago

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Radda [10]

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