2 years ago

27x+5+15x-2 what is the degree angle

1 answer:

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The original motivation for choosing the degree as a unit of rotations and angles is unknown. One theory states that it is related to the fact that 360 is approximately the number of days in a year.[5] Ancient astronomers noticed that the sun, which follows through the ecliptic path over the course of the year, seems to advance in its path by approximately one degree each day

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Solve each system by elemination, 4x+8y=20 and -4x+2y=-30

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The sum of the left side of these two equations is equal to the same of the right side is these two equations
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10y =50 ( x is eliminated)
y=5
Take this into the second equation
-4x +2y = 30
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So x=-5
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