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Norma-Jean [14]
3 years ago
11

Is it true that the constant of the expression 18z-7(-3+2z) is 21

Mathematics
1 answer:
ZanzabumX [31]3 years ago
7 0
Yes. It would be true
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URGENT!!!!!! Find the value of q in the following system so that the solution to the system is——
valkas [14]
<h3>Answer:  Q = 8</h3>

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Explanation:

The left hand side of the first equation is x-3y

The left hand side of the second equation is 2x-6y = 2(x-3y). Note how it's simply double of the first expression x-3y

If we multiply both sides of the first equation by 2, we get

x-3y = 4

2(x-3y) = 2*4

2x-6y = 8

Meaning that 2x-6y = 8 is equivalent to x-3y = 4. Both produce the same line leading to infinitely many solutions. Each solution will lay along the line x-3y = 4.

We can say each solution is in the set {(x,y): x-3y = 4}

Which is the same as saying each solution is of the form (3y+4,y)

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3 years ago
Not Math, I know, but I'd like your opinion.
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Answer:

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Step-by-step explanation:

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3 years ago
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Julia plays volleyball and finished the regular season with 25 digs. The graph relates her total number of digs for the season t
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We need to find an equation in the form y=mx+b.

To find m, we use the formula:
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The value of b (the y-intercept) is the value of y when x=0, which is 25.

So the equation is y=3x+25 (choice A).
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3 years ago
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There are two precalculus sections at a high school. Mr.​ Abel's class has 14 girls and 8 ​boys, while Mr.​ Bonitz's class has 1
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Answer:

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Step-by-step explanation:

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A circular pond 20 meters in diameter is surrounded by a gravel path 5 meters wide the path is to be replaced by a brick walk co
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The brick walk will cost 3000.
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