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3U+2V= -17 AND 2U+V=-8 USE THE ELIMINATION METHOD TO SOLVE THE SYSTEM OF EQUATIONS
U = 1, V = -10.
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Asked 11/11/2011 7:09:48 PM
Updated 356 days ago|9/27/2023 2:02:12 PM
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3U+2V= -17 AND 2U+V=-8 USE THE ELIMINATION METHOD TO SOLVE THE SYSTEM OF EQUATIONS
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Solution:
Given equations:
1. 3U + 2V = -17
2. 2U + V = -8
2 * (2U + V) = 2 * (-8)
4U + 2V = -16
1. 3U + 2V = -17
2. 4U + 2V = -16
(4U + 2V) - (3U + 2V) = (-16) - (-17)
4U + 2V - 3U - 2V = 1
(4U - 3U) + (2V - 2V) = 1
U = 1
2U + V = -8
2(1) + V = -8
2 + V = -8
V = -8 - 2
V = -10
So, the solution to the system of equations is U = 1 and V = -10.
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Added 356 days ago|9/27/2023 2:02:12 PM
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In triangle ABC, THE MEASURE OF ANGLE B IS 21, MORE THAN THREE TIMES THE MEASURE ANGLE A, THE MEASURE OF ANGLE C IS 54, MORE THAN THE MEASURE OF ANGLE A,FIND THE MEASURE OF EACH ANGLE
Weegy:
Let angle A=x. So, three angles are x, 3x+21, and x+54. So, x+3x+21+x+54=180. So, 5x= 180-75=105. So, x= 21. So, A= 21 degree, B= 84 degree and C= 75 degree
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Asked 11/11/2011 8:31:45 PM
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