When we are given a system of 3 linear equations, with 3 variables, we proceed as follows:
We consider 2 pairs or equations, for example (1, 2) and (2, 3), and eliminate one of the variables in each pair, creating a system of 2 linear equations with 2 unknowns.
Note that the third equation contains -2y which can be used to eliminate easily -6y in the second equation, and -4y in the fourth.
i) consider equations 1 and 3:
-3x-4y-3z=-7
5x-2y+5z=9
multiply the second equation by -2:
-3x-4y-3z=-7
-10x+4y-10z=-18
adding the 2 equations we have -13x-13z=-25
ii) consider equations 2 and 3. Multiply the third equation by -3:
2x-6y+2z=3
-15x+6y-15z=-27
adding the 2 equations we have -13x-13z=-24
So we got -13x-13z is -25, but also -24. this means the system is inconsistent, so it has no solution.
Answer: the system has no solutions
Answer:
1.75 ounces per bag.
Step-by-step explanation:
First, we add the ounces all together and we get 45.5 ounces of trail mix. If we divide that by 26 bags, we will get 1.75 ounces per bag. I hope this helps. If someone else answers, can you give me brainliest? I really need it. Thanks!
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Answer:
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Step-by-step explanation:
2 + 2 = 4
5 x 10 = 21
Answer:
The largest value in this situation would be $25+$50x6 which equals $450
