j2amagraciell j2amagraciell

07-01-2017
Mathematics

contestada

Which of the following points are not solutions of 2y-5x>6?
I. (-3,4) II. (5, -5/3) III. (3/4, 5) IV. (2.6, 5)

Respuesta :

texaschic101 texaschic101

07-01-2017

2(-5/3) - 5(5) > 6
-10/3 - 25 > 6
-10/3 - 75/3 > 6
-85/3 > 6
- 28 1/3 > 6....false.....so (5,-5/3) is not a solution

2(5) - 5(2.6) > 6
10 - 13 > 6
-3 > 6......false...so (2.6,5) is not a solution

the other 2 are solutions

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