meowmeowcow
22.09.2021 •
Mathematics
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Ответ:
Step-by-step explanation:
System as per the graphed lines:
y = 1/6x + 13x - 2y = 16The are two solutions.
Solution 1Take the coordinates of the intersection point and compare with the answer choices. This is the point with x-coordinate close to 7 and y-coordinate close to 2. The best choice is A.Solution 2Solve by substitution.
Substitute y into second equation:
3x - 2(1/6x + 1) = 163x - 1/3x - 2 = 168/3x = 18x = 18*3/8x = 6.75Find y:
y = 1/6x + 1y = 1/6(6.75) + 1y = 2.125The best estimate is x = 6.8 and y = 2.1
Correct choice is A