(4/y) - 5 = (5/2y)
solve for y.
2006-08-16 13:43:53 · 10 answers · asked by shih rips 6 in Science & Mathematics ➔ Mathematics
(4/y) - 5 = (5/2y)
Again, multiply through by "y"
4 - 5y = (5/2)
-5y = -(3/2)
y = 3/10
Plug in "y = 3/10 to check if it's extraneous:
( 4 / (3/10) ) - 5 = (5 / 2(3 /10) )
(40/3) - 5 = (50/6)
25/3 = 25/3
So, y = 3/10 is a solution.
2006-08-16 16:21:34 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The answer is -.3
After you multiply everything by y you end up with 4-5y=5/2.
That is the same as 5y=5/2-8/2.
That boils down to y = -3/10 which is the decimal -.3 as the answer.
2006-08-16 20:54:25 · answer #2 · answered by Rich Z 7 · 0⤊ 0⤋
y = 3/10
2006-08-16 20:54:25 · answer #3 · answered by Cherstin and Adam F 3 · 0⤊ 0⤋
I'm getting the 5/3.
2006-08-16 20:52:44 · answer #4 · answered by Anonymous · 0⤊ 0⤋
multiply both sides by y:
4 - 5y = 5/2
y = (4 - 5/2)/5 whatever that is.
2006-08-16 20:50:22 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Just rearrange it a little
how's this
4/y - 5/2y = 5
think that's a little more your speed?
2006-08-16 20:48:47 · answer #6 · answered by Orinoco 7 · 0⤊ 0⤋
.8333333=y
4/y-5/2y
4/y * 2 - 5/2y =8/2y - 5/2y =3/2y /5=
1.66666667/2y
y=1.6666667/2
y=.8333333333
2006-08-16 20:52:35 · answer #7 · answered by Anonymous · 0⤊ 0⤋
.3
2006-08-16 20:48:32 · answer #8 · answered by a_liberal_economist 3 · 0⤊ 0⤋
Is this a trick question?
y = 0
2006-08-16 21:01:06 · answer #9 · answered by springday 4 · 0⤊ 0⤋
no way......lol
2006-08-16 20:48:48 · answer #10 · answered by shelbers7410 2 · 0⤊ 0⤋