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Verdich [7]
3 years ago
8

What is the answer ???????????????

Mathematics
2 answers:
svetlana [45]3 years ago
7 0
4(-3)-9 =-21. I hope this helpsss
Sidana [21]3 years ago
3 0

Answer:

(2, - 1 )

Step-by-step explanation:

Given the 2 equations

y = 4x - 9 → (1)

y = x - 3 → (2)

Substitute y = 4x - 9 into (2)

4x - 9 = x - 3 ( subtract x from both sides )

3x - 9 = - 3 ( add 9 to both sides )

3x = 6 ( divide both sides by 3 )

x = 2

Substitute x = 2 into either of the 2 equations for y

Substituting into (2)

y = 2 - 3 = - 1

solution is (2, - 1 )

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Answer:

The mean number of customers that will arrive in a five-minute period is 2.

Step-by-step explanation:

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For one minute, the mean is of 0.4 customers.

So, using proportions, for 5 minutes, the mean is of 5*0.4 = 2 customers.

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4 0
3 years ago
- (3 x 100) + (7 x 10) + (4 x D) + (2 x 100)​
Vlad1618 [11]

Answer:

70 + 4D

Step-by-step explanation:

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5 0
3 years ago
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3 years ago
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Help ;-;........ ;v;
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Answer:

$163

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