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snow_lady [41]
3 years ago
8

Solve by using elimination 2x-6y=18 -2x + 4y = -6 ( , )

Mathematics
1 answer:
Anna11 [10]3 years ago
3 0

Answer:

x = -9,

y = -6

Step-by-step explanation:

2x - 6y =18

-2x + 4y = -6

you can add the equations together as is and eliminate x

-2y = 12

y = -6

then plug back in,

2x - 6(-6) = 18

2x + 36 = 18

2x = -18

x= -9

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List three factors that must be considered when designing and building a house? Describe how each factor can influence the desig
Gnesinka [82]

Step-by-step explanation:

I would say the area its getting built. imagine wanting to build a house but you can't dig the sewer (if thats the spelling) pipes bc the area you want doesn't have any water or something like that. definitely money. without it, you can't do anything, you can't buy materials or even hire people to help you because you cannot tell me that you can build a house on your own. Another I would say is Labor cause like I said, if you ain't got nobody to help you, you're probably going to take a few years or more. so if you want to build a house in an area where there is a few architects and designers, you're just going to have to suck it up and get what you get.

4 0
3 years ago
G+5>12 solution please i don’t know how to do this
Musya8 [376]

Answer:  g > 7

Graph has an open circle at 7 on the number line, shading to the right

================================================

Explanation:

Think of it like saying "I have a number, and I add on 5. The result is something larger than 12". You can guess and check your way to the answer, but the quickest way is to subtract 5 from both sides.

We subtract to undo the addition happening to the 'g'.

g+5 > 12

g+5-5 > 12-5

g > 7

So the number is larger than 7. For instance, if g = 8, then,

g+5 > 12

8+5 > 12

13 > 12

This is a true statement.

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

If you need to graph the solution, then you'll have an open circle at 7 on the number line. The open circle says to the reader "don't include this value as part of the solution set". Shade to the right of the open circle to describe all values larger than 7.

In summary, the graph has an open circle at 7 and shading to the right.

3 0
3 years ago
Mathematics. You have $50. In your savings account. Each week you deposit $5. in your account. Write an expression that models t
Mademuasel [1]
The formula can be:

50+5x

X being the number of weeks you want to deposit the $5 in the savings account!

For ex if you want to do that for 1 year ( each year has 52 weeks ) than:

50+5*52=50+260= $310 total in the savings account, after 1 year!

7 0
4 years ago
find the equation of a straight line passing through the point (1,2) and making an intercept of 3 on the positive y-axis.​
Gekata [30.6K]
Given: the points (1|2) and (0|3) lie on the line.

Question: equation of the line.

Solution:

General equation of a line: y = kx+d,

whereby:

the point (y|x) lies on the line
When x = 0, y = d
The point (0|3) says that d = 3.

So far, the equation is y = kx +3 ……… (1)

Inserting the point (1|2) into (1):

2 = k(1) + 3 => 2–3=k => -1 = k

Putting k into (1):

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Answer:

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4 0
3 years ago
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Answer:

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Step-by-step explanation:

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