3 years ago

What is the answer for 2(a-b)-(b-a)

Mathematics

1 answer:

Kruka [31]3 years ago

7 0

2(a - b) - (b - a) = 2a - 2b - b + a = 3a - 3b

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ſ x - 5y = -9( 4x + 4y = - 12Step 1 of 2: Determine if the point (-4,1) lies on both of the lines in the system of equations by

Phoenix [80]

Given:

$\begin{gathered} x-5y=-9\ldots\ldots(1) \\ 4x+4y=-12\ldots\text{.}\mathrm{}(2) \end{gathered}$

The given point is (-4,1)

Let's check the ordered pair (-4,1) in the first equation

$\begin{gathered} x-5y=-9 \\ (-4)-5(1)=-9 \\ -4-5=-9 \\ -9=-9 \end{gathered}$

Hence, (-4,1) is a solution of the first equation x-5y=-9.

Now, let's check (-4,1) in the second equation.

$\begin{gathered} 4x+4y=-12 \\ 4(-4)+4(1)=-12 \\ -16+4=-12 \\ -12=-12 \end{gathered}$

So, (-4,1) is a solution of the second equation 4x+4y=-12.

Hence, (-4,1) is a solution of both equation in the system, then it is a solution to the overall system.

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11 months ago

I need help does anyone know?

Rzqust [24]

Answer:1 4/5

Step-by-step explanation:

7 0

3 years ago

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Given f(x)=-8x+5 And g(x)=10x+2what is g(x) - f(x)

lidiya [134]

G(x)-f(x)=10x+2- (-8x+5)
=10x+2+8x-5
=18x-3

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3 years ago

(b) Write the ratio 12:30 in the form 1:n

kari74 [83]

answer:

1 : 2.5

explanation:

given ratio: 12 : 30

divide by 12:

$\frac{12}{12}$ : $\frac{30}{12}$

1 : 2.5

n = 2.5

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2 years ago

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What is the area of the triangle in square yards?<br> 6 yd.<br> 15 3/4 yd.<br><br> hurry plss

Lera25 [3.4K]

Answer:

im guessing 6 is your base and your height is 15 3/4.

Formula of a triangle we must remember:

BH x 1/2 (basically dividing by 2)

94.5 (fraction form will be: 94 1/2)

94.5 divided by 2 = 47.25 <---------- decimal form

94 1/2 divided by 2 = 47 1/4 <------- fraction form

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3 years ago