solve 2/5y = -4/15 please help me?
回答 (9)
2009-03-22 7:15 am
✔ 最佳答案
....2y..........-4------------ =--------
.....5...........15
30y=-20
y=-20/30 or -2/3 answer
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http://www.myalgebra.com/algebra_solver.aspx
2009-03-22 11:50 pm
2/5y = -4/15
y = (-4/15) / (2/5)
= (-4/15) * (5/2)
= -20/30
= -2/3
Hope this helps.
y = (-4/15) / (2/5)
= (-4/15) * (5/2)
= -20/30
= -2/3
Hope this helps.
2009-03-22 9:01 pm
You MUST present questions CLEARLY.
DO YOU MEAN :-
(2/5) y = - 4/15
2y = - 4/3
y = - 2/3
OR
2/(5y) = - 4/15
30 = - 20 y
y = - 3/2
DO YOU MEAN :-
(2/5) y = - 4/15
2y = - 4/3
y = - 2/3
OR
2/(5y) = - 4/15
30 = - 20 y
y = - 3/2
2009-03-22 4:27 pm
2/5(y) = -4/15
2y/5 = -4/15
2y = 5(-4/15)
2y = -4/3
y = (-4/3)/2
y = (-4/3)(1/2)
y = -2/3
2y/5 = -4/15
2y = 5(-4/15)
2y = -4/3
y = (-4/3)/2
y = (-4/3)(1/2)
y = -2/3
2009-03-22 2:14 pm
2 / 5y = -4 / 15
-> 2 = 5y(-4 / 15)
-> 2 = (-4y / 3)
-> 6 = -4y
-> y = 6 / -4
y = -3 / 2
-> 2 = 5y(-4 / 15)
-> 2 = (-4y / 3)
-> 6 = -4y
-> y = 6 / -4
y = -3 / 2
2009-03-22 2:12 pm
the answer is -20/30 which can be reduced to -2/3.
2009-03-22 2:11 pm
Use cross-multiplication: -20y=30
y= -1.5
y= -1.5
2009-03-22 2:09 pm
y=-2/3
2009-03-22 2:09 pm
assuming it's 2 over 5y...
divide both sides by 2/5...
y= -4/15 * 5/2
y = -10/30
you can take it from there
divide both sides by 2/5...
y= -4/15 * 5/2
y = -10/30
you can take it from there
收錄日期: 2021-05-01 12:10:52
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