Calculus
Inequality
2007-12-05 05:45:45 · 8 answers · asked by Token G 1 in Science & Mathematics ➔ Mathematics
12x - 9 ≤ 4
12x ≤ 13
x ≤ 13/12
2007-12-05 06:11:36 · answer #1 · answered by Como 7 · 2⤊ 0⤋
Kind of a trick question too simple:
x =1
12x -9 <_4
(12*1) - 9 = 3 definitely less than 4
2007-12-05 13:56:16 · answer #2 · answered by JUAN FRAN$$$ 7 · 0⤊ 1⤋
12x - 9 ⤠4 (add 9 to both sides)
12x ⤠13 (divide both sides by 12)
x ⤠13/12
You only need to treat it differently than an equality if you multiply or divide by a negative number, in which case you reverse the sign.
2007-12-05 13:56:54 · answer #3 · answered by Brian K² 6 · 0⤊ 0⤋
i have no idea, only that 12 x -9 is -108, im only in 8th grade, i dont understand the <_4 part.
2007-12-05 13:49:41 · answer #4 · answered by Anonymous · 0⤊ 1⤋
12x-9 = -108.... I would say that this is less than 4
2007-12-05 13:48:09 · answer #5 · answered by Anonymous · 0⤊ 1⤋
x=13/12
you plug it in
12(13/12) - 9 < 4 is false
4=4 is the answer
2007-12-05 13:57:58 · answer #6 · answered by christy8907 2 · 0⤊ 1⤋
X = 13/12. are you in the 3rd grade and already cheating (shame).
2007-12-05 13:48:27 · answer #7 · answered by K 3 · 1⤊ 1⤋
x<_13/12
2007-12-05 13:48:23 · answer #8 · answered by John D 1 · 0⤊ 0⤋