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goblinko [34]
3 years ago
9

Solve the system of linear equations by substitution. x + 4y = 6 x - y = 1

Mathematics
1 answer:
bulgar [2K]3 years ago
6 0

9514 1404 393

Answer:

  (x, y) = (2, 1)

Step-by-step explanation:

Use the second equation to write an expression for x:

  x = 1 +y

Substitute that into the first equation:

  (1 +y) +4y = 6

  5y = 5 . . . . . . . . subtract 1, collect terms

  y = 1 . . . . . . . divide by 5

  x = 1 +1 = 2 . . . use the expression for x to find x from y

The solution is (x, y) = (2, 1).

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Can someone walk me through this?
Diano4ka-milaya [45]
So you can set up proportion.

\dfrac{7.5\ \text m}{76^\circ} = \dfrac C{360^\circ}

Here, you need to solve for C.

You can do that by multiple both sides by 360 and then you should get 360^\circ\cdot\dfrac{7.5\ \text m}{76^\circ} = C \approx \boxed{35.526\ \text m}

Hope this helps.
3 0
3 years ago
Anyone know the answer?
storchak [24]

Answer:

A. 5-log3 (2)

Step-by-step explanation:

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3 years ago
Select the correct answer what is the solution of 5/2x - 7 = 3/5x+14
bixtya [17]

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Step-by-step explanation:

4 0
2 years ago
write an equation in slope intercept form for a line through the following: through (5,2). with a slope of -2
Veseljchak [2.6K]

Answer:

y = - 2x + 12

Step-by-step explanation:

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Here m = - 2, thus

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4 0
3 years ago
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FrozenT [24]

Answer:

112.5 deg

Step-by-step explanation:

First we find the area of the entire circle.

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The sector has area 5pi m^2.

Now we find the fraction the area of the sector is of the entire circle.

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4 0
3 years ago
Read 2 more answers
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