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Gemiola [76]
3 years ago
5

I took a picture of 2 problems I need help with can someone help me please

Mathematics
1 answer:
Minchanka [31]3 years ago
7 0

1 is C not sure about 2

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Multiply each equation by a constant that would help to eliminate the y terms.
Zinaida [17]

Answer:

Therefore the required resulting equation is

6x-15y=-63\\-15x+15y=90

6 x minus 15 y = negative 63.

Negative 15 x + 15 y = 90

Step-by-step explanation:

Given:

2x-5y=-21         ......................Equation ( 1 )

3x-3y=-18         ......................Equation ( 2 )

To Find:

Expression after multiplying to eliminate y term,

Solution:

So to eliminate 'y' term we need to multiply equation 1 by a constant 3 and equation 2 by a constant -5,  such that equations  becomes

3(2x-5y)=3\times -21\\\\6x-15y=-63 .....( 1 )

-5(3x-3y)=-5\times -18\\\\-15x+15y=90  .....( 2 )

so now by adding new equation one and two we can eliminate y term that means -15y and +15y will get cancel,

Therefore the required resulting equation is

6x-15y=-63\\-15x+15y=90

6 x minus 15 y = negative 63.

Negative 15 x + 15 y = 90

3 0
3 years ago
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Complete the 2 column proof below given j = h and line m bisects gk
prohojiy [21]
2 Colin is j = h with us like m with bisects gk is your answer
5 0
3 years ago
9s - 5g = -4y, for s
Oksi-84 [34.3K]
S = (5g -4y)/9

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The associative property allows us to change the grouping of the factors that are
Leto [7]

Answer:

Step-by-step explanation:equivalent expressions

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3 years ago
What is the standard form for the quadratic function?<br> g(x) = (x + 1)^2– 2
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Answer: g(x)=x^2+x-1

Step-by-step explanation:

(x+1)^2-2

x^2+2*1*x+1^2-2\\x^2+2x+1-2\\x^2+x-1

3 0
2 years ago
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