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4 years ago

5x-2y = -25 Solve by linear combination please show work

Mathematics

2 answers:

Luden [163]4 years ago

7 0

Answer:

The answer you get is x=-3, and y=5 or (-3,5)

Step-by-step explanation:

3x+y=-4 and 5x-2y = -25.

Firstly, to solve the equation let's use the multiplication method.

5x-2y=-25 (Multiply by 1)

3x+y=-4 (Multiply by 2)

5x-2y=-25

+6x+2y=-8

11x=-33

x=-3

We know that x=-3, now we can find y by substituting this value into other equations.

5(-3)-2y=-25

-15-2y=-25

+15 +15

-2y=-10

y=5

The answer you get is x=-3, and y=5 or (-3,5)

olya-2409 [2.1K]4 years ago

5 0

The answer you get is x=-3

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3 years ago

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MrRa [10]

Answer:

g^-1 (x)=1/2x+3/2

Step-by-step explanation:

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4 years ago

How to convert 264 yds/1 s to mi/day?

dusya [7]

Answer:

$12,960\ \frac{miles}{day}$

Step-by-step explanation:

we know that

$1\ mile=1,760\ yards$

To convert yards to miles multiply by 1/1,760

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$1\ day=24\ hours$

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To convert seconds to day multiply by 1/86,400

In this problem we have

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4 years ago

Math question down below

Kipish [7]

Answer: 6928

----------------------------------------------------------

Explanation:

We have two areas we need to find: The area of the trapezoid and the area of the rectangle. Let's call these areas A1 and A2.

Area of Trapezoid = (height)*(base1+base2)/2
A1 = h*(b1+b2)/2
A1 = 80*(150+100)/2
A1 = 80*250/2
A1 = 20000
A1 = 10000

Area of Rectangle = (length)*(width)
A2 = L*W
A2 = 48*64
A2 = 3072

Subtract the two areas (A1-A2) to get the difference D
D = A1 - A2
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This difference D is exactly equal to the shaded area.

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3 years ago

Whats issssssss 4x - 8 = 4x

Elenna [48]

Answer:

no solutions

Step-by-step explanation:

4x - 8 = 4x

Subtract 4x from each side

4x-4x - 8 = 4x-4x

-8 = 0

This is never true, so there are no solutions

3 0

4 years ago