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allsm [11]
3 years ago
14

How would I go about working this out?

Mathematics
1 answer:
Firlakuza [10]3 years ago
3 0

Basically, you plug in -4 for x and -7 for y (since -4 is the x coordinate and -7 is the y coordinate). When doing that, you get:

-14=-16+2

-8+7=-1

im not gonna say the answer, but looking at these equations, you can probably tell if they work or not :)


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The quantity demanded x for a certain brand of MP3 players is 100 units when the unit price p is set at $80. The quantity demand
Cerrena [4.2K]

Answer:p = (2100 - x)/25

Step-by-step explanation:

According to the law of demand, when the price,p of the brand of MP3 players is is high, the quantity,x of the brand of MP3 players demanded would be low and when the price,p of the brand of MP3 players is is low, the quantity,x of the brand of MP3 players demanded would be high.

To derive the demand equation, we would apply the slope intercept form of equation which is expressed as

y = mx + c

Where

m = slope

c = intercept

The slope, m would be

(y2 - y1)/(x2 - x1)

Slope = (1100 - 100)/(40 - 80) = 1000/-40

Slope = - 25

To find the y intercept, we would substitute m = - 25, y = 1100 and x = 40 into y = mx + c. It becomes

1100 = - 25 × 40 + c

1100 = - 1000 + c

c = 1100 + 1000 = 2100

y = - 25x + 2100

Therefore, the demand equation is

x = - 25p + 2100

25p = 2100 - x

p = (2100 - x)/25

4 0
3 years ago
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podryga [215]

Answer:

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Step-by-step explanation:

4 0
3 years ago
**Write them into an inequality!**
Alex73 [517]
1. 12in (1ft)+X=28in
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4. 120ft/12ft=x10sec.
5 0
3 years ago
What is the average of 17/15
blondinia [14]
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4 0
3 years ago
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A parking lot has a total of 60 cars and trucks. the ratio of cars to trucks is 7:3. how many cars are in the parking lot? how m
Vinil7 [7]
A) c + t = 60
B) 3c = 7t
Multiplying A) by -3
A) -3c + -3t = -180 then adding this to b
B) 3c = 7t
180 = 10t
trucks = 18
cars = 42


7 0
3 years ago
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