2007-12-02 04:36:57 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Brackets should be used.
Assume:-
(-7/2) m < 14
(7/2) m > - 14
7 m > - 28
m > - 4
2007-12-02 07:09:18 · answer #1 · answered by Como 7 · 3⤊ 1⤋
Isolate m:
-(7/2)m < 14
-m < 14*2/7 = 4
m > -4
Note that the direction of the inequality sign changed in the last step. You have to flip it around whenever you multiply or divide both sides by a negative number.
2007-12-02 12:41:49 · answer #2 · answered by DWRead 7 · 1⤊ 0⤋
well whenever you divide by a -, then you have to switch the arrow
-7/2m<14
*-2/7 *-2/7
m>-1
2007-12-02 12:41:19 · answer #3 · answered by Briana L 4 · 0⤊ 0⤋
you have to be very careful how you write an expression. This one could be interpreted two different ways.
-(7/2) *M <14
-(7/2) * (1/M) <14
2007-12-02 12:50:34 · answer #4 · answered by paul s 5 · 0⤊ 1⤋
Your trying to find M right?
What you do is divide 14 by -7/2
Which is -4
(:
And since you divided by a negative number, you have to switch the sign
Making it
m>-4
(:
2007-12-02 12:41:46 · answer #5 · answered by Ashley 3 · 1⤊ 1⤋