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ivanzaharov [21]
3 years ago
8

Solve this equation with substitution method :- x+5 = 3 (y+5) x-5 = 7 (y-5)

Mathematics
1 answer:
Damm [24]3 years ago
5 0
From the first equation,
x+5 = 3(y+5)
x = 3y + 15 - 5
Now substitue x in the second equation with (3y +15 - 5).
x-5 = 7(y-5)
(3y+15-5) - 5 = 7(y-5)
3y +5 = 7y - 35
-4y = - 40
y = 10

Since y is 10, and x is (3y +15 - 5),
x = 30 + 15 - 5 = 40
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navik [9.2K]

9514 1404 393

Answer:

  y < -1/4x -1

Step-by-step explanation:

The boundary line appears to go through the points (-4, 0) and (0, -1). This tells you it has a "rise" of -1 for a "run" of 4. The slope is ...

  m = rise/run = -1/4

The y-intercept (b) is the point where the y-axis is crossed. The slope-intercept equation of the boundary line is ...

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The boundary line is dashed, so is not included in the solution set. The shading is below the line, so all y-values less than (but not equal to) the boundary line are in the solution set:

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3 years ago
A rectangular rug has a perimeter of 20 feet. The length of the rug is 6 feet. What is the width of the rug in inches?
Alinara [238K]

Answer:

48 in

Step-by-step explanation:

The length of the rug is 6 feet. We know this must account for 2 sides of the rug, so let's multiply 6 by 2.

6 × 2 = 12

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Now divide 8 by 2 to find the measurement of the remaining two sides.

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connect two points
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Then use the pythereom 
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6 0
3 years ago
NEED ASAP
netineya [11]

Answer:

Supplementary

Step-by-step explanation:

135+45 =180

So Option C

3 0
3 years ago
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