Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 205177: how do you solve 5/6x - 8/2x = x/4
Click here to see answer by edjones(8007)

Question 205292: solve the system of equations
3x+4y+z=7
2y+z=3
-5+3y+8z=-31

i need you help, im desperate.
Click here to see answer by alicealc(293)

Question 205255: Find all solutions (x,y):
2x-y=2
y^2-4x=4
Click here to see answer by alicealc(293)

Question 205233: Please help me factor the following:
3x^3+192
2x^3-11x^2+12x+9
9x^2-3x-2
and
2x^5/4+x^3/4-15x^1/4
p.s. the 5/4, 3/4 and 1/4 in the above equation are exponents (2x raised to the 5/4)
Thank you
Click here to see answer by stanbon(75887)

Question 205344: a(a+b)^2+b(a+b)^2
Click here to see answer by stanbon(75887)

Question 205392: Simplify it
5x^3-10x^2/10x-5x^2
Click here to see answer by user_dude2008(1862)

Question 205331: Hi all, I was hoping to get help with the following problems. I need to find ∆y / ∆x, given the following information:
a) y = 1/x, x = 3, ∆x = 0.01;
b) y = sqrt(x), x = 9, ∆x = 0.9
Any help would be great,
Thanks, -nick.
Click here to see answer by Alan3354(69443)

Question 205419: The women in a club outnumber the men by 16. 7 times the number of women exceeds 9 times the number of men by 32. Find the number of men.
Click here to see answer by ankor@dixie-net.com(22740)

Question 205480: Ethan goes on a charity journey. He walks one-tenth of the way at 6km/h, runs one-sixth at 12 km/h, cycles one-fifth at 24km/h, completes the remaining 32km by car at 48km/h. How many kilometres does he travel and how long does it take?
Click here to see answer by Edwin McCravy(20055)

Question 205501: 4 is 25% of x. Solve for x.
I would appreciate any help i can get on this! Thanks in advance!
Click here to see answer by rapaljer(4671)

Question 205503: 2 1/3 x 5 1/4
Click here to see answer by user_dude2008(1862)

Question 205510: The ratio of 2 to 5 is what %?
Click here to see answer by stanbon(75887)

Question 205527: okay i had a math problem in class today and this isn't from a textbook
here it is
Input----Output
1------ 4
2------ 8
3------ 24
4------ X
Solve X, and the answer is not 4, 96, or 32. Please Help me ASAP!!!!!
Click here to see answer by Targetweek(62)

Question 205544: find the equation of the line through (-4,6)and perpendicular y=-3x+4
Click here to see answer by Alan3354(69443)

Question 205526: x-10square root of x + 9 = 0
Click here to see answer by Earlsdon(6294)

Question 205662: PLEASE help me with this subscripter variable:
3N^N+3N^Q=9
2N^N=10-6N^Q
Click here to see answer by RAY100(1637)

Question 205735: Hi all, Im having trouble understanding what this question is asking, can anyone show me how to solve?
The function V(t) = 11e^(-t)ln(t+1) models the speed of a particle for time
t >=0.
a) Say breifly how it is known whether V(t) grows or decays as t goes to infinity, without calculating or graphing. Explain why (justify answer).
b) Find the derivative of V(t) and factorise.
Help with explanations and steps would be very helpful.
Thanks, -nick.
Click here to see answer by Alan3354(69443)

Question 205791: 3x/2(x-3) +9/2(3-x)
Click here to see answer by stanbon(75887)

Question 205830: I am in need of some help with this algebra....
Add simplify by removing a factor of 1 if possible.
4 w+5 3
---- + ----- + -----
w+2 w^2-4 w-2
Thank you so much!!!!
Click here to see answer by stanbon(75887)

Question 205829: Could you please help me out with this problem??
Multiply and simplify
z^2-2-12 16z^3-9z
-------- X --------
4z^3-3z^2 4z-16
Thank you for all your help!!
Click here to see answer by stanbon(75887)

Question 205951: Write the equation for the line that passes through point (6,3) and intersects the line
Click here to see answer by jim_thompson5910(35256)

Question 205968: Need help with a word problem please.
A machine produces 195 bolts in 20 minutes. At the same rate, how many minutes would it take to produce 312 bolts?
Thank you
My try: I think this is a proportion, but not sure how to set it up.

Click here to see answer by dyakobovitch(40)

Question 205985: 5-4m=5..I am trying to learn algebra on my own can someone show me how to do this problem
Click here to see answer by edjones(8007)

Question 206050: Hi, I am stuck on this problem and need help...

Solve
q+5/q = -6
Thanks!
Click here to see answer by stanbon(75887)

Question 206050: Hi, I am stuck on this problem and need help...

Solve
q+5/q = -6
Thanks!
Click here to see answer by jim_thompson5910(35256)

Question 206135: please help me solve this problem im stuck.

x-3y=8 amd y=2x+1 then x=
Click here to see answer by Marth(57)

Question 206169: 2(x-3)=(x-1)+7 We aren't sure if you do the parenthesis first as in:
2(x-3)=(x-1)+7
(-x+1)=(-x+1) or: do you multiply first as in: 2x-6=(x-1)+7 in which case, what do we do next?
Click here to see answer by stanbon(75887)

Question 206201: R ( r1 + r2 ) = r1 + r2 solve for R
Click here to see answer by Earlsdon(6294)

Question 206203: Cindy is making a christmas wreath. The bow is made rom 6 yards of ribbon which must be cut into 3 pieces where 2 pieces are the same length and the third piece is 8 times as long. Find the length of each piece.
x+3-2+8=6
x+9=6
x=-3
Click here to see answer by Marth(57)

Question 206217: I don't understand how to solve for x - there are no numbers?
ab = xcd
Click here to see answer by HyperBrain(694)

Question 206246:
Click here to see answer by Marth(57)

Question 206246:
Click here to see answer by Targetweek(62)

Question 206260: the graph of a quadratic function (a parabola) has x-intercepts -1 and 3 and a range consisting of all numbers less than or equal to 4. Determine the expression for the function.
Click here to see answer by Marth(57)

Question 206049: Could you please help me out with this algebra problem?
Solve
7 1 1
--------- - ----- = ------
y^2-13y+36 y-9 3y-12

Thank you for your help!!
Click here to see answer by ankor@dixie-net.com(22740)

Question 206357: when x=3 and y=5, by how much does the value of 3x to the second power minus 2y exceed the value of 2x to the second power minus 3y...please explain i am having problems...thanks
Click here to see answer by Alan3354(69443)

Question 206416: An isosceles triangle has two sides of equal length. The length of one of the equal sides is 4x-3 and the other one is 2x+1. The longest side is 3x in length. Find the value of x and the perimeter of this isosceles triangle.
Click here to see answer by Alan3354(69443)

Question 206437: (3 + the sqaure root of 2)(-5 + 4 times the sqaure root of 2)
Click here to see answer by dyakobovitch(40)

Question 206443: simplify:
Click here to see answer by dyakobovitch(40)

Question 206441: simplify: -2 square root 15 p squared times 2 square root 2p
Click here to see answer by dyakobovitch(40)

Question 206439: a boat traveled 210 miles downstream and back. the trip downstream took 10 hours. the trip back took 70 hours. Find the speed of the boat in still water and the speed of the current.
Click here to see answer by mickclns(59)

Question 206436: 6 over x squared minus 8x = 1 over x + 3 over x squared minus 8x
Click here to see answer by RAY100(1637)

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