Solve 5x – 6y = –38. 3x + 4y = 0 . .
2 answers:
Answer:
The value of x= - 4 and y = 3 .
Step-by-step explanation:
As given the equations
5x – 6y = –38
3x + 4y = 0
Multiply 5x – 6y = –38 by 3
15x - 18y = -114
Mutiply 3x + 4y = 0 by 5
15x + 20y = 0
Than the two equations are
15x - 18y = -114
15x + 20y = 0
Subtracted 15x + 20y = 0 from 15x - 18y = -114 .
15x - 15x - 18y - 20y = -114
-38y = -114
y = 3
Putting this value in the equation
15x + 20 × 3 = 0
15x + 60 = 0
15x = -60
x = -4
Therefore the value of x= - 4 and y = 3 .
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Answer:
Step-by-step explanation:
Given
below sea level
Sea of Galilee = 30 times Lowest in Lammefjord, Denmark
Required
Determine the elevation of the Sea of Galilee
We have that the lowest elevation in Lammefjord is:
It is negative because, the elevation is below sea level.
Calculating the elevation of Sea of Galilee, we have:
Sea of Galilee = 30 times Lowest in Lammefjord, Denmark
<em>Hence, the elevation of Sea of Galilee is -690ft or 690ft below sea level</em>