2 answers:
Answer:
To solve this we need to form 2 equations with only 2 variables.
x+4y-5z=-7
2x+y+5z=8
3x+5y=1
15x+10y+15z=35
6x+3y+15z=24
9x+7y=11
Now we need to use these to find x and y
9x+15y=3
9x+7y=11
8y=-8
y=-1
Therefore:
x=2
From this we can find that:
2(2)-1+5z=8
Therefore z=1
The answer is x=2, y=-1, z=1
Answer: -x + 4/3y - 5/3z
Step-by-step explanation:
1/3*(-3x+4y-5z)
-1/3 * 3x + 1/3 * 4y - 1/3 * 5z
-x + 4/3y - 5/3z
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Answer:
(x-5)^3
Step-by-step explanation:
(x-5)^3. (x−5)3 ( x - 5 ) 3
Answer:
x + 3y = 5
5x - 3y = 7
Add up both equations, then:
6x = 12
=> x = 2
=> y = (5 - 2)/3 = 1
Answer:
3. x = 53
4. x = 60
Step-by-step explanation:
Answer:
1 hour=35+15=50
2 hours=35+15(2)=65
3 hours=35+15(3)=80
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Step-by-step explanation:
Answer: $466.
Step-by-step explanation:
Add all the numbers in the graph together, you get 194.
Now, subtract 194 from 660, you get 466. That's how much profit the company makes.
