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NemiM [27]
3 years ago
7

FAST PLEASE !!!!

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
5 0

Answer:

2/3

Step-by-step explanation:

To get the slope, you do (y2-y1)/(x2-x1).

You can also remember it as rise/run, as it is the change in y/change in x.

You can make either coordinate 1 or 2, just keep it consistent with the rest of the problem.

For this, I chose (-5, -7) to be 2, and (4, -1) to be 1.

Following the formula for slope, (y2-y1)/(x2-x1), you put the values in: (-7-{-1})/(-5-4).

-7 minus -1 is -6 and -5 minus 4 is -9.

Thus you get -6/-9. Don’t forget to simplify! A negaive divided by a negative is positive, and both 6 and 9 can be divided by 3. 3 goes into 6 TWO times and into 9 THREE times.

So, you get a positive fraction, 2/3.

Hope this helped.

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see explanation

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7 0
3 years ago
A tiling company completes two jobs. The first job has $1200 in labor expenses for 40 hours worked, while the second job has $15
daser333 [38]

Answer:

The correct option is;

1560 = 30(52) + b

Step-by-step explanation:

The cost of the first job = $1,200 in labor and expenses

The number of hours worked in the first job = 40

The second job costs $1,560 in labor and expenses

The number of hours worked in the second job = 52

If the cost of labor per hour = L and the expenses = b, we have;

$1,200 = 40×L + b......................(1)

$1,560 = 52×L + b.......................(2)

Subtracting equation (1) from (2), we have;

52×L + b - (40×L + b) =  52×L - 40×L + b - b = $1,560 - $1,200 = $360

12×L = $360

L = $360/12 = $30/hour

From equation (1), we have;

$1,200 = 40×L + X =  40×$30 + b

Therefore, the equation that can be used to calculate the y-intercept of the linear equation is either;

1200 = 40(30) + X or 1560 = 32(52) + b, which gives the correct option as 1560 = 32(52) + b

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3 years ago
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