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3 years ago

Solve each equation with a variable 7X -14+ 2X equals negative 2X +3

Mathematics

1 answer:

Len [333]3 years ago

4 0

Answer:

$7x - 14 + 2x = - (2x + 3 )\\ \\ 9x - 14 = -2x - 3 \\ \\ 9x + 2x = - 3 + 14 \\ \\ 11x = 11 \\ \\ { \underline{ \: \: x = 1 \: \: }}$

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ValentinkaMS [17]

Answer:

P = 74

Step-by-step explanation:

14 + 60 = 74

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4 years ago

What is the answer to or help me learn what 54-6÷2+6=

JulijaS [17]

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From: Dark Angel

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3 years ago

Demand The demand function for a product is given by

stira [4]

Answer:

$x= -\frac{ln [\frac{5P}{8000-P}]}{0.002}$

a) $x= -\frac{ln [\frac{5*200}{8000-200}]}{0.002} =1027.062 \approx 1027$

b) $x= -\frac{ln [\frac{5*800}{8000-800}]}{0.002} =293.893 \approx 294$

Step-by-step explanation:

For this case we have the following function:

$P= 8000 (1- \frac{5}{5 +e^{-0.002 x}})$

We can solve for x like this. First we can reorder the expression like this:

$\frac{P}{8000} = 1- \frac{5}{5+e^{-0.002x}}$

$\frac{5}{5+e^{-0.002x}} = 1 -\frac{P}{8000} = \frac{8000-P}{8000}$

$\frac{40000}{8000-P} = 5 + e^{-0.002x}$

Now we can apply natura log on both sids and we got:

$ln[\frac{40000}{8000-P} -5] = ln e^{-0.002x}$

$ln [\frac{5P}{8000-P}] = -0.002x$

And if we solve for x we got:

$x= -\frac{ln [\frac{5P}{8000-P}]}{0.002}$

Part a

For this case we can replace P = 200 and see what we got for x like this:

$x= -\frac{ln [\frac{5*200}{8000-200}]}{0.002} =1027.062 \approx 1027$

Part b

For this case we can replace P = 800 and see what we got for x like this:

$x= -\frac{ln [\frac{5*800}{8000-800}]}{0.002} =293.893 \approx 294$

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3 years ago

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kari74 [83]

Answer:

Graph B

Step-by-step explanation:

Linear functions are straight lines.

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