3 years ago

How would you solve the equation y-5=m(x-2)

1 answer:

7 0

One equation with 3 variables cannot be solved in the sense that you can find "the" 3 values for x, y and m. You can observe that this equation represents a family of straight lines with varying slope (depending on m).

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15 centimeters

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A contestant on a game show has 30 points. She answers a quest on correctly to win 15 points. Then she answers a question incorr

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4 years ago

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What is the average of 45 and 19

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$\frac{45+19}{2} =\frac{64}{2} =32$

The average of 45 and 19 is 32.

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Step-by-step explanation:

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3 years ago

Suppose a computer manufacturer has the total cost function

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(a) P(x) = 300 x - 3600

(b) P(340) = $ 98400

Step-by-step explanation:

Part (a):

The Profit function is the difference between the revenue function (R(x)) and the Cost (C(x)) function:

P(x) = R(x) - C(x)

P(x) = 384 x - [84 x + 3600]

P(x) = 384 x - 84 x - 3600

P(x) = 300 x - 3600

Part (b):

The profit on 340 items is:

P(340) = 300 (340) - 3600

P(340) = 102000 - 3600

P(340) = $ 98400

Part (c):

To avoid losing money, the profit P(x) has to be larger or equal than zero. That is:

P(x) $\geq$ 0

300 x -3600 $\geq$ 0

300 x $\geq$ 3600

x $\geq$ 3600/300

x $\geq$ 12

So at least 12 items must be sold to avoid losing money.

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3 years ago