(4x-2)/5-(3x-1)/10=0
(8x-4-3x+1)/10=0
(5x-3)/10=0
5x/10-3/10=0
5x/10-0,3=0
5x/10=0,3
5x=0,3x10
5x=3
x=3/5
(8x-4-3x+1)/10=0
(5x-3)/10=0
5x/10-3/10=0
5x/10-0,3=0
5x/10=0,3
5x=0,3x10
5x=3
x=3/5
Last edited by sergeriver (2006-09-24 06:16:22)
just move the (3x - 1)/10 to the right side. multiply the left side by 2 to get rid of the fractions. then subtract 3x from the 8x, that gives 5x -2 = 1.
then add 2 to the right side, that gives 3. divide 3 by 5 giving x = 3/5
then add 2 to the right side, that gives 3. divide 3 by 5 giving x = 3/5
Exactly. No calcutators needed. I just did it that way in 30 seconds.starkingdoms wrote:
just move the (3x - 1)/10 to the right side. multiply the left side by 2 to get rid of the fractions. then subtract 3x from the 8x, that gives 5x -2 = 1.
then add 2 to the right side, that gives 3. divide 3 by 5 giving x = 3/5
"If you want a vision of the future, imagine SecuROM slapping your face with its dick -- forever." -George Orwell
x=3/5
Vub has done it correctly, and to prevent further attempts to solve it and get the wrong answer (see above post) I'll just close this
Vub has done it correctly, and to prevent further attempts to solve it and get the wrong answer (see above post) I'll just close this
Excuse me, above post has the correct answer, thank you very much.Prodie wrote:
x=3/5
Vub has done it correctly, and to prevent further attempts to solve it and get the wrong answer (see above post) I'll just close this
"If you want a vision of the future, imagine SecuROM slapping your face with its dick -- forever." -George Orwell
Gah, Bad HTTP_REFERER.....guess this topic isn't meant to be closed
First multiply the hole thing with 10 the and you got:
2(4x-2)-(3x-1)=0
8x-4-3x+1=0
5x-3=0
5x=3
x=3/5
2(4x-2)-(3x-1)=0
8x-4-3x+1=0
5x-3=0
5x=3
x=3/5
Last edited by Zeppo Johnson (2006-09-27 08:58:52)
Maybe this will help:
I don't know.
Edit: But look at my sig for a quick laugh...hopefully I'm not one of those people.
I don't know.
Edit: But look at my sig for a quick laugh...hopefully I'm not one of those people.
Last edited by MastersMom (2006-09-24 06:21:16)
0 x 10 = 0Zeppo Johnson wrote:
First multiply the hole thing with 10 the and you got:
2(4x-2)-(3x-1)=10
8x-4-3x+1=10
5x-3=10
5x=13
x=13/5
Hmm... I tested it out and the right answer is 3/5. But it doesn't make any sense in my count. Are you sure that there's not any variables or numbers missing?
There's the mistake, I'm sure you made it on purpose
this guy is exactly rightVub wrote:
Basic steps of algebra:
1. Put over common denominator, in this case, it is 10.
(8x - 4 - 3x + 1)/10 = 0
2. Simplify your numerator.
(5x - 3)/10 = 0
3. Now cross multiply, in this case you times 10 to both sides. 0 x any integer = 0
(5x - 3) = 0
4. Put unknowns on one side, put integers on the other side of the equation.
5x=3
5. Solve
Therefore x = 3/5
took me less than a minute to solve it
Last edited by bennisboy (2006-09-24 06:56:26)
Well, seeing as how that problem's been solved, may I post a riddle here?
A guy is pushing his car. When he reaches his hotel, he's bankrupt. Why?
A guy is pushing his car. When he reaches his hotel, he's bankrupt. Why?
why does vub get the credit....
it was me i say, meeeeeee
it was me i say, meeeeeee
I knowjimmanycricket wrote:
why does vub get the credit....
it was me i say, meeeeeee
try this one:
r is a position vector of a particle given by:
r=t2i+0.5t3j
t is time and i and j are unit vectors in the horizontal and vertical respectively.
give an equation for the velocity v of the particle
r is a position vector of a particle given by:
r=t2i+0.5t3j
t is time and i and j are unit vectors in the horizontal and vertical respectively.
give an equation for the velocity v of the particle
Last edited by bennisboy (2006-09-24 07:16:10)
The 3 golden rules of algebra are:
1. Know your BODMAS order
2. If n is the number of pronumerals you have, then you must have n equations to solve them
3. THIS ONE'S THE MOST IMPORTANT ONE
As long as you do the same to both sides of the equals sign, the statement holds true.
1. Know your BODMAS order
2. If n is the number of pronumerals you have, then you must have n equations to solve them
3. THIS ONE'S THE MOST IMPORTANT ONE
As long as you do the same to both sides of the equals sign, the statement holds true.
How are r and v different?bennisboy wrote:
try this one:
r is a velcity vector of a particle given by:
r=t2i+0.5t3j
t is time and i and j are unit vectors in the horizontal and vertical respectively.
give an equation for the velocity v of the particle
- 4x-2 - 3x-1 = 0 5 10
- 4x-2 = 3x-1 (add 2nd term to both sides) 5 10
- 40x - 20 = 15x - 5 (cross-multiply)
- 40x = 15x + 15 (add 20 to both sides)
- 25x = 15 (subtract 15x from both sides)
- x = 15 (divide by 25) 25
- x = .6 = 3/5
x=0.6
either he's got no money or thats his nameTetrino wrote:
Well, seeing as how that problem's been solved, may I post a riddle here?
A guy is pushing his car. When he reaches his hotel, he's bankrupt. Why?
The answer I got was:
x = ?
x = ?
♥
5x=3 or x= 3/5
same, maths ftlReciprocity wrote:
my brain is stinging
oops should say r is a position vector, will change itVub wrote:
How are r and v different?bennisboy wrote:
try this one:
r is a velcity vector of a particle given by:
r=t2i+0.5t3j
t is time and i and j are unit vectors in the horizontal and vertical respectively.
give an equation for the velocity v of the particle
v = 2ti + 1.5(t^2)j
correct, karmaramaVub wrote:
v = 2ti + 1.5(t^2)j