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frez [133]
3 years ago
11

How to solve 3 variable systems

Mathematics
1 answer:
AVprozaik [17]3 years ago
4 0
<span>Pick two pairs: 4x - 3y + z = - 10. 2x + y + 3z = 0. ... Eliminate the same variable from each system: 4x - 3y + z = - 10. 2x + y + 3z = 0. ... Solve the system of the two new equations: -5y - 5z = - 10. 5y - 7z = 34. ... Substitute into one of the original equations: - x + 2y - 5z = 17. ... <span>Check: Does 2(1) + 4 + 3(- 2) = 0 ? Yes.</span></span>
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Can someone help me with this one
m_a_m_a [10]

hmmmm put all the ratios in it like ac=8 by putting all values divide it if all part answer come same so your figure is congrenent

4 0
3 years ago
Olive buys indie music online. Each song costs $2 plus a $5 fee for using the artist's site. She has no more than $40 to spend.
SCORPION-xisa [38]
In constructing an inequality, you need to know the following:

1. What don't we know? How many songs can be bought? So, let x be the numbers of songs.
2. What do we know? Each songs costs $2 plus a fee for using the artist's site of $5.
3. Is there more than 1 possible solution? Yes, because there is enough money left if she only bought 1 song.

The meaning of no more than $40 means it must not exceed $40, $40 or less, or only $40.

So, song + fee can't be more than $40 and song + fee could equal to $40.

Therefore, song + fee for using an artist's site less than or equal to $40.
Final Answer: 2x+5 <= 40
7 0
4 years ago
Read 2 more answers
What is the flat side of a solid figure?
Aloiza [94]
It is referred to as a face.<span />
7 0
3 years ago
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Write a value that makes 3 &gt; x true How do you<br> know?
Vera_Pavlovna [14]

Answer:

3 > x

x=2

because 3 is larger than 2

Step-by-step explanation:

5 0
3 years ago
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A rectangle has a width of 9 units and a length of 40 units. What is the length of a diagonal?
aliina [53]

Answer:

41 units

Step-by-step explanation:

Rectangles have right angles, so we can use Pythagorean theorem to find the diagonal.

c² = a² + b²

c² = 9² + 40²

c² = 81 + 1600

c² = 1681

c = 41

4 0
4 years ago
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