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natta225 [31]
3 years ago
8

Solve the system by substitution. 4y = 5x -10y =-50

Mathematics
1 answer:
Trava [24]3 years ago
7 0

Answer:

x = -20 ; y =-5

Step-by-step explanation:

Eqn. 1 ----> 4y = x

Eqn. 2 ----> 5x-10y = -50

(Simplifying eqn.2 further)

=>5(x-2y)=-50

=>x-2y=\frac{-50}{5} =-10

(Substituting the value of x from eqn. 1)

=>4y-2y=-10

=>2y=-10

=>y =\frac{-10}{2} =-5

Now, substituting the value of y in eqn. 1 ,

x = 4*(-5)=-20

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3 years ago
Which is the prime factorization of 40?
Lana71 [14]

Hey there!

Which is the prime factorization of 40?


Option A.

2 * 5

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Option B.

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Option C.

2 * 53

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Therefore, your answer is:

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4 0
2 years ago
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4 years ago
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