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trapecia [35]
3 years ago
8

PLZ help me this is hard

Mathematics
1 answer:
Assoli18 [71]3 years ago
4 0

Answer:

d

Step-by-step explanation:

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Solve the system using the substituion method<br> -4x+y=8<br> x-3y=9
lions [1.4K]
Hi there!

x - 3y = 9
x = 9 + 3y
 
-4x + y = 8
-4(9+3y) + y = 8
-36 - 12y + y = 8
-36 - 11y = 8
-11y = 44
-y = 4
y = -4

x - 3y = 9
x - 3(-4) = 9
x + 12 = 9
x = 21

So, your answers are y = -4 and x = 21.

Hope this helps!
3 0
3 years ago
What is the slope of the graph of 14x + 7y = –9
Dmitriy789 [7]
The slope is 0. All you had to do was put in the calculator for the right answer.
4 0
2 years ago
Please answer this correctly
SCORPION-xisa [38]

Answer:

The answer is B, this is because we already 60 students play in the orchestra, we just don’t know how many play cello. But we do know it is 20 percent of the orchestra. That way we know that the correct graph is B.

Please mark me Brainliest if I got it right. Thank you and have a nice day!

8 0
3 years ago
What is -1 3/5 ÷ -2/3?​
elena55 [62]

Answer:

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Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is a-5-b a=10 b=4
Nitella [24]

Answer:1

10-5=4

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Step-by-step explanation:

4 0
3 years ago
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