a.y<=0.02
b.y>=20
c.y<=-20
d.y>=50
e.y>=15
f.y<=0.5
2006-09-23 08:56:12 · 7 answers · asked by cherryvalley2006 2 in Science & Mathematics ➔ Mathematics
0.1y-2<=0.3y-5
-0.2y<=-5+2=-3
0.2y>=3
y>=15
2006-09-23 09:06:02 · answer #1 · answered by raj 7 · 0⤊ 0⤋
0.1y-2,=0.3y-5
0.1y-0.3y <= -5+2 group like terms, y
-0.2y<=-3
y>= -3/-0.2 , dividing by negative, change from "<=" to ">="
your answer is y>=15
2006-09-23 16:43:13 · answer #2 · answered by Anonymous · 0⤊ 0⤋
0.1y - 2 < 0.3 y -5
-0.2y /-0.2 < -3 / -0.2
y >15
*when u divide by a negative u flip the signs
* so the answer is E
2006-09-23 16:28:25 · answer #3 · answered by Huda H 2 · 0⤊ 0⤋
.1y - 2 <= .3y - 5
rearrange
3 <= .2y
divide by .2 (its positive so the sign doesn't flip flop)
15 <= y
your answer is D
2006-09-23 16:07:20 · answer #4 · answered by Scott S 2 · 0⤊ 0⤋
.1y - 2 <= .3y - 5
y - 20 <= 3y - 50
-2y <= -30
y >= 15
ANS : e
2006-09-23 21:52:34 · answer #5 · answered by Sherman81 6 · 0⤊ 0⤋
.1y-2<=.3y-5
Take .3y from both sides
-.2y-2<=-5
Add 2
-.2y<=-3
Times by -1
.2y<=3
Times by 5
y<=15
2006-09-23 16:15:31 · answer #6 · answered by me 2 · 0⤊ 0⤋
e
2006-09-23 16:12:57 · answer #7 · answered by bruinfan 7 · 0⤊ 0⤋