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tino4ka555 [31]
3 years ago
5

How do you solve linear equations in three variables?

Mathematics
2 answers:
barxatty [35]3 years ago
8 0
''Pick any two pairs of equations<span> from the system. Eliminate the same </span>variable<span> from each pair using the Addition/Subtraction method. Solve the system of the two new </span>equations<span> using the Addition/Subtraction method.''</span>
sleet_krkn [62]3 years ago
5 0
Really depends upon the 3 equations.
If you can find x in terms of y and z in one of the problems,
then substitute this back into the other two equations, then solve the 2 equations and two unknowns.
There are other elimination techniques but difficult to explain.
Or use the matrix solution technique in the TI calculator and use "rrde" to solve.
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A 5k marathon is equivalent to how many miles.? (Conversion factor: 1 mile = 1.6 km)
Tanya [424]

Answer:

3.10686

Step-by-step explanation:

Divide the kilometer by 1.609

6 0
3 years ago
Read 2 more answers
Find the slope of (0, 4), (− 5, 2)
vredina [299]

Answer:

⅖ is the slope

Step-by-step explanation:

To find slope:

\frac{ {y}^{2} -  {y}^{1}  }{ {x}^{2} -  {x}^{1}  }

\frac{2 -4}{ - 5 - 0}

\frac{ - 2}{ - 5}

\frac{2}{5}

7 0
3 years ago
The graph shows how many cans of each type of cat food were sold one day. (View picture)
sleet_krkn [62]
It's very easy!
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First of all, add up all the amounts of all can flavors.
.
What do you think it approximates to?
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I'd say 245.
.
Now, how much is 30 out of 245?
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Around 24%.
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So, what's 245/100? (100 because it is default maximum percentage number)
<span>.  
</span>2.45.
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24 divided by 2.45?
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Around 9%.
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Your best guess is 10% or D.
3 0
3 years ago
(05.06 LC)
brilliants [131]
If we are to make x small rugs, each of which takes 2 hours to dye, then the total time taken to dye the small rugs is 2x. Similarly for the y large rugs which each take 3 hours to dye, the total time for dyeing the large rugs is 3y. Therefore the total for all sizes of rugs is 2x + 3y. Finally, we have a maximum of 60 available hours for the dyeing, so the total time cannot exceed 60, and the final inequality is
2x + 3y < 60
8 0
3 years ago
Showing me step-by-step details, please help me find the product of the polynomials.
anzhelika [568]
4/3 (k)(k + 7)(3k + 9)
4/3 (k)(3k^2 + 9k + 21k + 63)
4/3 (k)(3k^2 + 30k + 63)
4/3 (3k^3 +30k + 63)
4k^3 +40k +84
6 0
3 years ago
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