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yKpoI14uk [10]
3 years ago
15

19) You want to solve the system below by eliminating y. You multiply the first equation by 7. By what number should you multipl

y the second equation? * 2x - 5y = 1 -3x + 7y = -3 -5 5 -7 7
i do not know
​
Mathematics
1 answer:
spin [16.1K]3 years ago
6 0

Answer:

Should be 7 because you want the equations to balanced.

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3 years ago
Question 1
Ilia_Sergeevich [38]

We will see that the perimeter of the rectangle is exactly 390 ft, so the statement is true.

<h3>Is the fence enough?</h3>

For a rectangle of length L and width W, the perimeter is given by:

P = 2*(L + W).

In this case, we know that:

L = 120 ft

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Replacing that on the perimeter equation we get:

P = 2*(120 ft + 75  ft) = 390 ft

So the perimeter is exactly 390 ft, meaning that to put a fence around the parking lot the company will need at least 390 ft of fence.

So the statement is correct.

If you want to learn more about perimeters, you can read:

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2 years ago
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Klio2033 [76]
Increase=5%of 4
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4 years ago
Find x. Please help with This problem!!!
Archy [21]

Step-by-step explanation:

7+2x-2 = 4x -3

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3 years ago
Hello can anyone give me the full answer to this step by step?
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Answer:

1. f = 16 degrees

2. h = 10 degrees

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2. h = (180 - 60 + 90) / 3

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3 years ago
Read 2 more answers
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