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schepotkina [342]
3 years ago
15

Solve the system of linear equations by substitution. x+4y=14 3x+7y=22

Mathematics
2 answers:
natita [175]3 years ago
5 0

Answer:

x=-2

y= 4

Step-by-step explanation:

x=14-4y

42-5y=22

y=4

x=-2

maria [59]3 years ago
4 0
Your answer for the first one will be x=-2 and for the second answer will be y=4
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Answer:

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Step-by-step explanation:

A Type I error happens when a true null hypothesis is rejected.

In this case, as the claim that want to be tested is that the average wind speed is significantly higher than 15 mph, the null hypothesis has to state the opposite: the average wind speed is equal or less than 15 mph.

Then, with this null hypothesis, the Type I error implies a rejection of the hypothesis that the average wind speed is equal or less than 15 mph. This is equivalent to say that there is evidence that the average speed is significantly higher than 15 mph.

"A Type I error in the context of this problem is to conclude that the true mean wind speed at the site is higher than 15 mph when it actually is not higher than 15 mph."

8 0
3 years ago
What is the answer to 1935 divided by 54
Degger [83]

35.833

0 0 3 5. 8 3 3

5 4 1 9 3 5. 0 0 0

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   1 9          

 −   0          

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7 0
3 years ago
Help me please<br><br> thanks in advance
Mandarinka [93]
The answer is equal to 10.
3 0
4 years ago
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8_murik_8 [283]

Answer:

$37.5

Step-by-step explanation:

(25/50) x 75 = 37.5

$25/50  .... each apple cost $0.5

0.5 x 75 = 37.5

8 0
3 years ago
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STALIN [3.7K]

Answer:

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6 0
3 years ago
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