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Over [174]
3 years ago
10

Solve.

Mathematics
1 answer:
Lina20 [59]3 years ago
8 0
Try to subtitute y with 3x - 7
15x - 5y = 14
15x - 5(3x - 7) = 14
15x - 15x + 35 = 14
35 ≠ 14
The equation system doesn't have any solution
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In a quiz contest, 4 marks were awarded for a correct answer and -2 marks were given for an incorrect answer. If James gave 5 in
Zina [86]

9514 1404 393

Answer:

  10

Step-by-step explanation:

For c correct answers and 5 incorrect answers, James's score is ...

  4c -2(5) = 30

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James gave 10 correct answers.

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2 years ago
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zubka84 [21]

to get the slope of any line, all we need is two points off of it.

so let's see hmmmmmmm this line passes through (0, 1) and hmmmm (4, -2)


\bf (\stackrel{x_1}{0}~,~\stackrel{y_1}{1})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{-2}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-2-1}{4-0}\implies \cfrac{-3}{4}\implies -\cfrac{3}{4}

8 0
3 years ago
This means that each point where the two lines intersect is a
Norma-Jean [14]

Answer: When two or more lines cross each other in a plane, they are called intersecting lines. The intersecting lines share a common point, which exists on all the intersecting lines, and is called the point of intersection. Here, lines P and Q intersect at point O, which is the point of intersection.

I think this the answer‍♀️

8 0
2 years ago
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Average price of a CD/ mp3 player is : $ 150

Meanwhile , average price of an mp3 player is : $50

To buy 4 cd/mp3 player, we need $ 150 x 4 = $ 600
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The total is  $ 750

Hope this helps
5 0
2 years ago
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