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mamaluj [8]
3 years ago
7

The table below shows four systems of equations:

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
6 0
System 1 and system 3, because the second equation in system 3 is obtained by adding the first equation in system 1 to three times the second equation in system 1.
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4 years ago
I need help fast thanks
Galina-37 [17]

Answer:

In the explanation

Step-by-step explanation:

a) Multiply the second equation by 2, subtract both lines. You get x = -3. Plug this in to get y, y = -2

b) Multiply the first equation by 2, add both lines. You get x = 8. Plug this in to get y, y = -3

c) Multiply the first equation by 5, subtract both lines. You get y = 1. Plug this in to get x, x = -3

d) Multiply the first equation by 2 and the second one by 3, add both lines. You get x = 1. Plug this in to get y, y = 4

Hope this helps!

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3 years ago
a table was listed $400 after discount.And the net price was $450.what is the rate discount and marked price?​
Rama09 [41]

Answer:

Your answer

Discount rate = 11.11%

Mark it as Brainlist. Follow me for more answer.

Step-by-step explanation:

5 0
3 years ago
X times 11=1 <br><br> what is X<br> pls help
Slav-nsk [51]
11x=1
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Step-by-step explanation:

i don't know exactly

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