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Artemon [7]
3 years ago
14

Question 3 of 20 :

Mathematics
1 answer:
rusak2 [61]3 years ago
4 0

Answer:

B

Step-by-step explanation:

\frac{ - 4 + 12}{2}  = y

\frac{5 -13 }{2}  = x

-8/2=-4=x

8/2=4=y

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Solve for x in the simultaneous equation 2x+y=3 ,5x-2y=12
sp2606 [1]

Answer:

x = 2

Step-by-step explanation:

Given the 2 equations

2x + y = 3 → (1)

5x - 2y = 12 → (2)

Multiplying (1) by 2 and adding to (2) will eliminate the y- term

4x + 2y = 6 → (3)

Add (2) and (3) term by term

(5x + 4x ) +( - 2y + 2y) = 12 + 6 , that is

9x = 18 ( divide both sides by 9 )

x = 2

6 0
3 years ago
What are the properties of addition?
stira [4]
The properties are the commutative, associative, additive identity and distributive properties
7 0
3 years ago
Can someone help me ?
denis23 [38]

Answer:

r = - 29

Step-by-step explanation:

Given

- 3r = 87 ( divide both sides by - 3 )

r = \frac{87}{-3} = - 29

7 0
3 years ago
Read 2 more answers
4. Decide whether the following rates are equivalent? Answer is either: YES or NO
Arte-miy333 [17]

Answer

Yes, they are equivalent.

Step-by-step explanation:

10x2=20

13x2=26

6 0
3 years ago
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Which ordered pair is the best estimate for the solution of
devlian [24]

Answer:

(1.5, 2.5) is the best approximate solution.

Step-by-step explanation:

According to the graph, at the point of intersection of these two lines, x is closest to 1.5 and y is simultaneously closest to 2.5.

(1.5, 2.5) is the best approximate solution.

5 0
4 years ago
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