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aleksandr82 [10.1K]
3 years ago
14

Solve the system using elimination. y – x = 13 7y + x = 11

Mathematics
1 answer:
Eva8 [605]3 years ago
6 0

Answer:

x= -10 ; y= 3

Step-by-step explanation:

see the picture

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5(x 1) − 8 = 5x(2 − 4)
svp [43]
Answer:
5 x (2 - 4)
5x-8= -10x
15x=8
x=8/15

Hope this helps!

3 0
3 years ago
Help need answer please
antiseptic1488 [7]

Answer:

59.5

Step-by-step explanation:

1st tree to shadow ratio: 17:10

Plug the numbers in to get x:35

17:10=x:35

17/10=x/35

Multiply both sides by 35

595/10=x

59.5=x

5 0
2 years ago
Please help
katrin2010 [14]
\dfrac{n^2+3n+2}{n^2+6n+8}-\dfrac{2n}{n+4}\\\\=\dfrac{n^2+2n+n+2}{n^2+4n+2n+8}-\dfrac{2n}{n+4}\\\\=\dfrac{n(n+2)+1(n+2)}{n(n+4)+2(n+4)}-\dfrac{2n}{n+4}\\\\=\dfrac{(n+2)(n+1)}{(n+2)(n+4)}-\dfrac{2n}{n+4}\\\\=\dfrac{n+1}{n+4}-\dfrac{2n}{n+4}=\dfrac{n+1-2n}{n+4}=\dfrac{1-n}{n+4}

Answer:\ \boxed{B.\ \dfrac{1-n}{n+4}}
7 0
3 years ago
which of the ordered pairs is a solution of the given system? y=3x-2 y=-x A.(2,9)B.(1,4)C.(1/2,-1/2)
lesantik [10]

Step-by-step explanation:


7 0
3 years ago
What is the instantaneous acceleration of the particle at point B?
aniked [119]
No no no it is 2 meters 15 seconds maybe u write not correctly. but according to your choice of answers, only D is suitable here
6 0
3 years ago
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