jaelynnm
29.08.2019 •
Mathematics
What is the solution to the following system of equations? x-2y=2, x-2y=-2
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Ответ:
x - 2y = -2
add
2x = 0
x = 0
x + 2y = 2
0 + 2y = 2
2y = 2
y = 2/2
y = 1
solution is (0,1)
Ответ:
0.0240792 x 60 = 1.444752 km/minute
1.444752 x 60 = 86.68512 km/hour
Ans: 86.69 km/h