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4 years ago

What is the solution to this system of linear equations?

Mathematics

2 answers:

tankabanditka [31]4 years ago

6 0

The correct answer is c

Veronika [31]4 years ago

4 0

Answer is B. (−8, −2)

y − x = 6

y + x = −10
...........................add
2y = -4
y = -4/2
y = -2

y − x = 6
-2 - x = 6
-x = 6 + 2
x = 8
x = -8

(-8,-2)

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Artyom0805 [142]

Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

Read 2 more answers

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3 years ago

car as the following utility function: U(X,Y)equals10Upper X squaredY where X is her consumption of Blu-ray disks with a pri

mr_godi [17]

Answer:

She consumes 30 blue ray disk and 60 DVD respectively.

Step-by-step explanation:

Consider the provided information.

$U(x,y)=10x^2y$

Calculate marginal utility of good

Differentiate with respect of x and y.

$MU_x=20xy$

$MU_y=10x^2$

Her consumption of Blu-ray disks (X) with a price of $40 and Y is her consumption of DVDs with a price of $10.

The ratio of marginal utility of good x to y is equal to the price ratio:

$\frac{MU_x}{MU_y}=\frac{P_x}{P_y}$

Substitute the respective values.

$\frac{20xy}{10x^2}=\frac{40}{10}$

$\frac{2y}{x}=4$

$2y=4x$

$y=2x$

She has $1800 with which to spend on the two goods.

Her consumption of Blu-ray disks (X) with a price of $40 and Y is her consumption of DVDs with a price of $10. She has $1800 with which to spend on the two goods.

Therefore, $40x+10y=1800$

$4x+y=180$

Substitute the value of y in above equation.

$4x+2x=180$

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Thus, $y=60$

She consumes 30 blue ray disk and 60 DVD respectively.

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3 years ago