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Katyanochek1 [597]
2 years ago
9

Which properties justify the steps taken to solve the system?

Mathematics
1 answer:
Nutka1998 [239]2 years ago
6 0

Answer:

X=-1

Y=1

Step-by-step explanation:

6x-12y

-18

) 6x + 4y

-

-2

Subtract the two equations

6x - 12y - (6x + 4y) = -18 - (-2)

Determine the sign

6x- 12y - 6x- 4y

=-18 + 2

Simplify

-12y

- Ay

=-18 + 2

Solve the equation

Substitute

6×+4

-2

Solve the equation

X=

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Let 3.27<<5.89 represent an interval on the number line. Find the value that is in the middle of the interval.
laila [671]

Answer:

The middle value of the interval is 4.58

Step-by-step explanation:

Consider the provided interval.

We need to find the value that is in the middle of the interval.

We can find the middle value of the interval by adding the upper and lower limit and divide the sum of the upper and lower limits by 2.

Here the upper limit is 3.27 and lower limit is 5.89.

\frac{3.27+5.89}{2}=\frac{9.16}{2}=4.58

Hence, the middle value of the interval is 4.58

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The diameter of a circle is 7 ft. Find its area to the nearest tenth.
Mumz [18]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
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monitta

Answer:

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Step-by-step explanation:

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kenny6666 [7]

Answer:

(-2, -18) and (2, 10)

Step-by-step explanation:

the answer is -18 and 10

8 0
3 years ago
Tina is growing sunflowers in her garden. The flowers are currently 6 inches tall each week x, they will double in size . Which
Alika [10]
For this case we have an equation of the form:
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 Answer:
 
An equation that best represent how tall the sunflower will b in x weeks is:
 
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