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tester [92]
3 years ago
7

-2x + y = 4 y = x + 2 Third question^ solve the system of equations

Mathematics
1 answer:
Leya [2.2K]3 years ago
6 0

Answer:

x=-2 y=0

Step-by-step explanation:

put the second equation in to the first one

-2x+x+2=4

-x=2

x=-2

y=-2+2=0

x=-2 y=0

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Can someone help me pls
Gekata [30.6K]

Answer:

C, D

Step-by-step explanation:

6 0
3 years ago
The vertices of a quadrilateral in the coordinate plans are known. How can the perimeter of the figure be found?
Art [367]

Answer:

You can find the distance between each of the adjacent vertices and then add the results together.

Step-by-step explanation:

Perimeter is all of the side lengths added together, so if you can find the distances between each of the adjacent vertices and then add the together, it will be equivalent to adding all of the side lengths together.

8 0
3 years ago
An empty box weighs 200 g. The box is filled with birthday party goody bags and it now weighs 6.2 kg. Each goody bag weighs 150
Sliva [168]

Answer:

The number of goody bags inside the box=40

Step-by-step explanation:

Given the box weighs 200g

given the weight each goody bag be 150g.

Let the number of  goody bag be x

Also given that the weight of the bag Long with the goody bags is 6.2Kg.

We know that 1Kg =1000 g.

So total weight=6.2*1000=6200g

Total weight=weight of the bag + the number of goody bags * the weight of each goody bag.

Now

6200=200+150*x

x=6000/150=40

Therefore there are 40 goody bags

4 0
3 years ago
Write an absolute value equation that has the given solutions 8 and 18
Alex73 [517]
Hello : 
<span>an absolute value equation is : 
</span><span>|(x-8)(x-18) |=0</span>
6 0
3 years ago
When I double my number, add four, and then subtract my number and subtract three, I get my number plus one. What is my number?
morpeh [17]

Answer: Let your no.= x

double the number=2x

add 4 = 2x+4

subtract same number=2x+4-x

subtract 3=2x+4-x-3

I get my number plus 1=x+1

 

so equation we get

2x+4-x-3=x+1

x+1=x+1

 

x=x

 

it means  x is equal to all real number

So your number can be any real number

6 0
3 years ago
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