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JulsSmile [24]
3 years ago
13

1. Solve the system of equations algebraically.

Mathematics
2 answers:
goldfiish [28.3K]3 years ago
8 0
Hello,
Please, see the attached files.
Thanks.

Andrew [12]3 years ago
4 0
1. We can double the second equation to get: 2x - 6y = 6; and then add the equations together to get -y = 4, y = -4. We plug y in to get x - 3(-4) = 3, x = 15. The answer would be (15, -4)
2. We can subtract the two equations to eliminate y and get 2x = 12, x = 6. We can plug x in to the second equation to get 9 + 3y = 18, and 3y = 9, so y = 3. The answer would be (6, 3)
3. We add the first two equations to get 8x - 5y = -34, and then subtract the last two equations to get 3x - 2y = -13. We multiply the first by 2, and the second by 5, and then add them together. We get x = -3. We plug the x-value into the second equation to get -9 - 2y = -13, so y = 2. We plug both values into the third equation to get -9 - 2 - z = -6. -z = 5, z = -5.
---
Hope this helps!
==jding713==
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Divide the following quantiles in the given ratio £100 1:3 £80 3:5 £250 2:3:5
goblinko [34]

Answer:

Step-by-step explanation:

a.

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6 0
3 years ago
mia hired a moving company, it charged 500$ for service mia give them a 16% tip.How much did she tip the movers.
Novosadov [1.4K]

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$80

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Answer:

Step-by-step explanation:

Sinθ = \frac{\text{Opposite side}}{\text{Hypotenuse}}

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θ = 210°

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3 0
3 years ago
Can i please get some help here its math
LiRa [457]
X is 9


12x + 17 = -1 + 14x
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2 years ago
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