jkummes
jkummes
21-10-2016
Mathematics
contestada
If 4x-2y>3 and 2x-2y<18, which must be true?
Respuesta :
Аноним
Аноним
21-10-2016
let's say 2y < 18 - 2x
so
4x - 2y > 3
4x - 18 - 2x > 3
2x > 21
2x/2 > 21/2
x > 10.5
2y < 18 - 2(10.5)
2y < 18 - 21
2y < -3
y < 1.5
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