Recent problems solved by 'parthdesai27'

parthdesai27 answered: 9 problems

Radicals/544892: I'm Home schooled and need help.
What is The sqrt of 18 minus the sqrt of 3 divided by the sqrt of 6?
Thank You.
1 solutions

Answer 355330 by parthdesai27(9) on 2011-12-10 06:57:00 (Show Source):

Equations/484316: -2(x+2) = 5-2x
1 solutions

Answer 331390 by parthdesai27(9) on 2011-08-22 09:21:02 (Show Source):

You can put this solution on YOUR website!
=> -2x-4 = 5-2x
so. in this case -2x are cancelled out...so what is remaining to find?.!!

Signed-numbers/484286: -5(3x-12)=30-9x
1 solutions

Answer 331389 by parthdesai27(9) on 2011-08-22 09:14:39 (Show Source):

You can put this solution on YOUR website!
=> -15x+60 = 30-9x
=> 30 = 6x
=> x = 5

Equations/484318: what is the equation for: 3 times a number plus twice the number plus 1 is -4
1 solutions

Answer 331388 by parthdesai27(9) on 2011-08-22 09:11:58 (Show Source):

You can put this solution on YOUR website!
suppose that number be 'x'.then from the hypothesis we have,
3x+2x+1 = -4
=> 5x = -5
=> x = -1

Linear-equations/484261: 1/3x = 5/12

1 solutions

Answer 331384 by parthdesai27(9) on 2011-08-22 09:07:01 (Show Source):

You can put this solution on YOUR website!
taking cross multiplication, we get...
=> 12 = 15x
=> x = 12/15 = 0.8

Linear-equations/484262: 2/3x = 9/2
1 solutions

Answer 331382 by parthdesai27(9) on 2011-08-22 09:04:53 (Show Source):

You can put this solution on YOUR website!
taking cross multiplication, we get...
=> 4 = 27x
=> x = 4/27 = 0.148

Linear-equations/484263: 3x + 4 =x
1 solutions

Answer 331381 by parthdesai27(9) on 2011-08-22 09:02:48 (Show Source):

Functions/484306: if f(x)=2x3-8x-3 then find f(-2)

1 solutions

Answer 331378 by parthdesai27(9) on 2011-08-22 08:59:41 (Show Source):

You can put this solution on YOUR website!

put x = -2 in that equation, we get...

=>f(-2) = -16+16-3
=>f(-2) = -3

Equations/484315: please help me solve this equation i have no idea of what to do : 0.9(2x+8)=20-(x+5)
thanks !!
1 solutions

Answer 331375 by parthdesai27(9) on 2011-08-22 08:55:16 (Show Source):

You can put this solution on YOUR website!
18x+72 = 200-10x-50
=> 18x+72 = 200-10x-50
=> 28x = 150-72
=> x = 78/28 = 2.786

.

See tutors' answers!