Questions on Algebra: Negative and Fractional exponents answered by real tutors!

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Question 438638: simplify:
2/x+3/y divided by 3/x-2/y
Please help me solve this equation I have to submit it for a quiz and I have no idea how to solve it, my book doesn't really explain.
thanks
Paola
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Question 438876: 18x-6xy
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Question 439078: %283a%5E-3b%5E2c%5E4%2F6a%5E2b%5E-2c%5E4%29%5E2 please help me simplify with the answer only having positive exponents
thanks
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Question 441289: I can't figure out how to simplify this problem:
%2812x%5E%28-1%2F3%29y%5E%281%2F2%29%29%2F%283x%5E%283%2F5%29y%5E%28-2%2F3%29%29
Please help me.
Click here to see answer by ankor@dixie-net.com(22740) About Me 
Question 442513: It's been a long time since I've done algebra and I'm trying to help a friend in another state over the phone understand what they are doing. They read a problem to me:
(26x^3y^4)/(-13xy^8)
we broke it down to
(26/-13)(x^3/x)(y^4/y^8) = -2x^2y^-4
at this point they tell me their sample shows the answer as:
(2x^2)/y^4
and I come up with (-2x^2)/y^4
What am I not remembering about getting rid of the negative sign? Their instructions are to come up with an answer with no negative signs.
Thanks.
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Question 443952: What is the answer for 1 over c^-1?
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Question 440522: How do you simplify:
(x^9)/(x^-2)
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Question 444951: For what values of x is the function y = 3 to the "x" power(x is an exponent) between 0 and 1?
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Question 444951: For what values of x is the function y = 3 to the "x" power(x is an exponent) between 0 and 1?
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Question 436011: 3 to the power of -4 over 5 to the power of negative -2.

Tried:
3x3x3x3= 81
5x5= 25
25
--------
81

OR
-81
________
25
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Question 446311: Simplify assume that no denominator is 0&0^0 is not considered
8a^9b^7/2a-b
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Question 446537: What is 1+1?
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Question 447339: What is the answer to A=P+P rt;r
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Question 447289: Write an algebraic equation to represent "the sum of a number multiplied by 5, and 11 is 7 times that number."
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Question 448461: reduce given fracion to lowest term
15z^(2)/-36z^(8)
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Question 449055: Can you simplify the expression.
-(6)^-1
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Question 450156: x/x+8 - 8/x-8 = x^2+64/x^2-64
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Question 450284: -1(-4)
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Question 453553: how do you write 1/5 using a negative exponent?

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Question 454015: how can i simplify this equation after raising the quanitity in the parenthesis using positive exponents?
(-47x^-2y/141x^3y^-3)^3
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Question 454113: what is the soulution to this problem?
_z-4__+__6z-36______
z-1 + z2- 7 2+6
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Question 454974: What makes (4k-1)(k+2) undefined?
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Question 455129:
Here is this fraction that are always available on computerized tests. Please help me solve this problem: 75+400+ 800/ 1000
This is a fraction with 1000 being a denominator.
I am sure it is set up correct.
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Question 455125:
What is 49/5 + 16/5 - 4/5 =
I would like to know how this problem is solved?

Click here to see answer by rfer(16322) About Me 
Question 455128: I would like to know How to solve this problem: 4ww5/4ww8 4ww3/4ww2=

The numbers at the end of each double u are powers.
Thank you for your time and assistance.
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Question 455835: what is the simplified answer to this expression? (x^-2)^4
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Question 457225: 324w^8 y^8/48w^6 y^6
Simplify by removing the factors of 1
I do not know what I am doing wrong here! WHen I simplify the equation I cme up with 27w^2y^2/4
but I am obviously doing something wrong. I am not sure what removing the factor of 1 means
Click here to see answer by Alan3354(69443) About Me 
Question 457337:
This Algebra word problem says Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, How long will it take for both of them to paint the house together?
I figured working this problem out by adding 4 to both sides. Can you tell me if this problem is an expression and is it solved right?
Click here to see answer by Alan3354(69443) About Me 
Question 457334: This problem explains that 8x + 5x + 2x + 4x = 114, the 5x + 3 =
I added all the whole numbers to get 19 and then added 5x + 3 and got eight.
Then, as I added all them up I recieved 27, but the closest answer to this is a
25. Can you please look at this problem and find out if this is correct?
Thank You.

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Question 457865: -3y+7(-2+-y)=50
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Question 457831: 3 5/7 mn
___________
2 4/5 np
that is 3 and 5/7th not 35/7th and it is 2 and 4/5th not 24/5th
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Question 460386: ‎(6x to the negative 8 exponent/7y to the negative 2 exponent) to the negative 2 exponent.
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Question 460712: (a2)4
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Question 462271: If you simplify an expression and end up with a negative exponent, how do you get rid of it?
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Question 462948: express without a radical and with positive fractional exponents.
√ab^3
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Question 462956: solve for x.
x^1/2=8
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Question 462957: solve for x.
x^4/3=81
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Question 463019: How do you do this?
-√196 Simplify.
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Question 463345: 2^(5/2)-2^(3/2)=


I would really appreciate someone's help. I need to know how to find the answer too.
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Question 463345: 2^(5/2)-2^(3/2)=


I would really appreciate someone's help. I need to know how to find the answer too.
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Question 466192: 3x^-2 rewrite with positive exponents, then simplify as much as possible
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Question 466247: (3x)^-2 rewrite with positive exponents, simplify as much as possible
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Question 466346: solve for x. please show work,
x^4/3=81
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Question 466345: solve for x.
x^1/2=8
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Question 466411: c^-1
_______
c^-4
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