Solve for x and y in the following pair of equations:
Y = -0.2x + 4.2
X - 0.5y = 10
A) x = 11; y = 2
B) x = 2; y = 11
C) x = 11; y = 6.4
D) x = 6.45; y = 2.9
E) x = 6.4; y = 11

Question

Quizplus · Accepted Answer

Explanation:Substitute the first equation into the second equation:X - 0.5(-0.2x + 4.2) = 10X + 0.1x - 2.1 = 101.1x = 12.1x = 11Substitute x back into the first equation:Y = -0.2(11) + 4.2Y = 2

Solve for X and Y in the Following Pair of Equations