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pashok25 [27]
4 years ago
5

Solve 20x+ 5y = 15 for y.

Mathematics
1 answer:
Nesterboy [21]4 years ago
5 0

20x+ 5y = 15

Move 20x to the other side. Sign changes from +20x to -20x

20x-20x+5y=-20x+15

5y=-20x+15

Divide both sides by 5

5y/5=y ( Cross out 5 and 5, divide by 5, 1*1*y=y)

-20/5=-4x

15/5=3

y=-4x+3 or y=3-4x

Answer: y=-4x+3 or y=3-4x

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The number of square feet per house is normally distributed with a population standard deviation of 154 square feet and an unkno
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Step-by-step explanation:

Confidence interval for population mean:

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As per given , we have

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\overline{x}= 1550 square feet

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Confidence interval for population mean:

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