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Mashutka [201]
3 years ago
12

Evaluate each expression when y = 5. a 12+ 4 b. 4(+3)

Mathematics
1 answer:
kati45 [8]3 years ago
5 0

Answer:

Step-by-step explanation:

it's ambiguous.

where do we replace the y values in either a or b?

kindly, write down the question well.

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It always confuses me when they make me do the baby steps
fgiga [73]

A. Alright, we want to multiply one equation by a constant to make it cancel out with the second. Since the first equation has a "blank" y, let's multiply the first equation by <em>2</em>.

3x-y=0 → 2(3x-y=0) = 6x - 2y = 0

5x+2y=22


The answer for this part would be: 6x - 2y = 0 and 5x + 2y = 22


B. So now we combine them:

6x - 2y = 0

+ + +

5x + 2y = 22

= = =

11x + 0 = 22 ← The answer


C. Now that we have the equation 11x = 22, we solve for x

11x = 22 ← Divide both sides by 11

x = 2 ← The answer


D. Now that we have x=2, we plug that back in to 5x+2y=22 and solve for y:

5(2)+2y = 22

10 + 2y = 22

2y = 12

y = 6


<u>Therefore, the solution to this problem is x = 2 and y = 6</u>


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3 years ago
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Complement of event A will contain all those outcomes in the sample space which are not a part of event A.

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Mile markers along the highway tell drivers how many miles they have traveled from one location to another. Suppose Daniel sees
agasfer [191]
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Answer:

D

Step-by-step explanation:

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