Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 121264: Please help
x/3-1/4=3x-8/12
Thank you
Click here to see answer by BrittanyM(80)

Question 121278: Hi. Can I have some help with the following equation
Find all real solutions of the following equation. (If there are extra answer boxes, enter NONE in the last boxes.)
sqrt(x)-2 root4(x) - 15 = 0
Click here to see answer by stanbon(75887)

Question 121277: Hi. May I have some help with the following equation?
Find all real solutions of the following equation. (If there are extra answer boxes, enter NONE.)
(x/(x+7))^2 = (4 x)/(x+7) - 4
Click here to see answer by stanbon(75887)

Question 121276: add
x^2/x-5+
4x-45/x-5
Thank you
Click here to see answer by stanbon(75887)

Question 121274: Hi May I have some help with the following equation?
Find all real solutions of the following equation. (If there are extra answer boxes, enter NONE.)
(x - 4)^2 + 9(x - 4) + 20 = 0
Click here to see answer by stanbon(75887)

Question 121273: Hi. I have a question on the following equation.
Find all real solutions of the following equation. (If there are extra answer boxes, enter NONE.)
-1 / (x + 1) - 2 / (x^2) = 0
Click here to see answer by stanbon(75887)

Question 121288: I don't really understand transformations, and I didn't know they would be on my homework.
The question is this: "solve the equation by simplifying both sides and then using transformations to isolate the variable.
2x+3x=5"

Click here to see answer by stanbon(75887)

Question 121233: please help
2x-6/21 divided by 5x-15/12
Thank you
Click here to see answer by jim_thompson5910(35256)

Question 121200: add
x^2/x-5+4x-45/x-5
Thank you in advance
Click here to see answer by jim_thompson5910(35256)

Question 121316: 200 =600(a+1)/24
200 x 24 = 600(a+1) (by multiplying both sides of the equation by 24)
4800 = 600(a+1) (by simplifying the left hand side)
4800/600 = a+1 (by dividing both sides of the equation by 600)
8 = a+1 (by simplifying the left hand side)
8-1 =a (subtracting 1 from both sides of the eqauiton)
7 =a (simplifyng the left hand side)
Therefore
a =7

Click here to see answer by ainsworth50(1)

Question 121332: SOLVE

3/X-1=6/X+2
Thank you soooo much
Click here to see answer by MathLover1(20849)

Question 121318: Subtract
4x/x-5-
20/x-5
Click here to see answer by checkley71(8403)

Question 121336: Subtract
4x/x-5-
20/x-5
divide
x2-36y^2/5x^2-30xy
divided by (x^2+6xy)
Click here to see answer by jim_thompson5910(35256)

Question 121384: Hi. May I have some help with the following equation?
Grain is falling from a chute onto the ground, forming a conical pile whose diameter is always three times its height. How high is the pile (to the nearest hundredth of a foot) when it contains 900 ft3 of grain?
Click here to see answer by stanbon(75887)

Question 121416: I need help with this problem so that I can help my daughter understand her homework. The problem is : 8x + 4y = 12
Click here to see answer by checkley71(8403)

Question 121379:

how do you remove brackets? e.g. 2(x+5) or a(a-4)

multiply out of brackets and simplify? e.g. (x+3)(+2) or (2c-3)(3c+4)

Click here to see answer by checkley71(8403)

Question 121436: Of all possible quotients of the numbers 10, -1/2, -5, and 1/5 which tow produce the largest quotient? Which two produce the smallest?
Click here to see answer by checkley71(8403)

Question 121446: x-{x-1-[x-2-(x-3-{x-4-[x-5-(x-6)]})]}
Click here to see answer by stanbon(75887)

Question 121446: x-{x-1-[x-2-(x-3-{x-4-[x-5-(x-6)]})]}
Click here to see answer by scoppedge(1)

Question 121382: Hi may I have some help with this equationn?
Find all real solutions of the following equation.
-1 / (x + 1) - 2 / (x^2) = 0
Click here to see answer by HyperBrain(694)

Question 121463: 4-3/5x=-6
Click here to see answer by checkley71(8403)

Question 121557: May I have some help with this following problem?
In the vicinity of a bonfire, the temperature T in �C at a distance of x meters from the center of the fire was given by the following formula.

T=325000/(x^2+300)
At what range of distances from the fire's center was the temperature less than 250�C?
Click here to see answer by checkley71(8403)

Question 121560: What is the height of a triangle if the base is 60 and the hypotenuse is 61?

Click here to see answer by checkley71(8403)

Question 121561: The edge of a 4-meter long ladder is 3.5 meters from the base of a building. Will the top of the ladder reach a window that is 3.8 meters from the ground? Can you also explain it?
Click here to see answer by checkley71(8403)

Question 121562: May I have some help with this inequality?
Solve the nonlinear inequality. Express the solution using interval notation. (If the solution contains only one interval, use (0, 0) for the remaining intervals. If you need to enter - or , type -INFINITY or INFINITY.)
x^2 + 4x ≤ 60
Click here to see answer by checkley71(8403)

Question 121559: If the two legs of a right triangle are 30 and 40, then the hypotenuse is?
Click here to see answer by MathLover1(20849)

Question 121559: If the two legs of a right triangle are 30 and 40, then the hypotenuse is?
Click here to see answer by checkley71(8403)

Question 121558: this problem is from chapter 4.4 how do you 16(q+1) 6q=-28?
Click here to see answer by checkley71(8403)

Question 121556: Hi. May I have some help with the following problem?
For a certain model of car the distance d required to stop the vehicle if it is traveling at v mi/h is given by the following formula, where d is measured in feet. Kerry wants her stopping distance not to exceed d = 400 ft. At what range of speeds can she travel?
d=v+(v^2)/20
Click here to see answer by checkley71(8403)

Question 121563: Hi. May I have some help with this equality?
Solve the nonlinear inequality. Express the solution using interval notation. (If the solution contains only one interval, use (0,0) for the remaining intervals. If you need to enter - or , type -INFINITY or INFINITY.)
(x + 2)(x + 7) ≥ 0
Click here to see answer by solver91311(24713)

Question 121565: May I have some help with the following problem?
A car rental company offers two plans for renting a car.

Plan A: $35 per day and 19� per mile
Plan B: $65 per day with free unlimited mileage
For what range of miles will plan B save you money? Give your answer as an interval (in miles)
Click here to see answer by checkley71(8403)

Question 121570: A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as editing) and variable costs (such as printing). The one-time fixed costs will amount to $47,736 . The variable costs will be $9.50 per book. The publisher will sell the finished product to bookstores at a price of $23 per book. How many books must the publisher print and sell so that the production costs will equal the money obtained from sales?
Click here to see answer by checkley71(8403)

Question 121571: A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as editing) and variable costs (such as printing). The one-time fixed costs will amount to $47,736 . The variable costs will be $9.50 per book. The publisher will sell the finished product to bookstores at a price of $23 per book. How many books must the publisher print and sell so that the production costs will equal the money obtained from sales?
Click here to see answer by checkley71(8403)

Question 121576: May I have some help with the following equation?
Solve the linear inequality. Express the solution using interval notation. )
2(-2x + 1) ≤ -8x - 22
Click here to see answer by checkley71(8403)

Question 121577: May I have some help with this inequality?
Solve the linear inequality. Express the solution using interval notation.
5 < -2x + 9 ≤ 9
Click here to see answer by jim_thompson5910(35256)

Question 121587: 5e=3e+36
Click here to see answer by checkley71(8403)

Question 121573: Ed will rent a car for the weekend. He can choose one of two payment plans. The first plan costs$57.96 for two days plus .15 cents per mile. The second plan costs $43.96 for two days plus .20 cents per mile. How many miles does Ed need to drive for the two plans to cost the same?
Click here to see answer by checkley71(8403)

Question 121580: Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $28 one-time activation fee and charges .8 cents a minute. The second plan has no activation fee and charges .12 cents a minute. After how many minutes of long distance calls will the costs of the two plans be equal?
Click here to see answer by checkley71(8403)

Question 121462: 2/3x=5=1/3x=17
Click here to see answer by checkley71(8403)

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36721..36765, 36766..36810, 36811..36855, 36856..36900, 36901..36945, 36946..36990, 36991..37035, 37036..37080, 37081..37125, 37126..37170, 37171..37215, 37216..37260, 37261..37305, 37306..37350, 37351..37395, 37396..37440, 37441..37485, 37486..37530, 37531..37575, 37576..37620, 37621..37665, 37666..37710, 37711..37755, 37756..37800, 37801..37845, 37846..37890, 37891..37935, 37936..37980, 37981..38025, 38026..38070, 38071..38115, 38116..38160, 38161..38205, 38206..38250, 38251..38295, 38296..38340, 38341..38385, 38386..38430, 38431..38475, 38476..38520, 38521..38565, 38566..38610, 38611..38655, 38656..38700, 38701..38745, 38746..38790, 38791..38835, 38836..38880, 38881..38925, 38926..38970, 38971..39015, 39016..39060, 39061..39105, 39106..39150, 39151..39195, 39196..39240, 39241..39285, 39286..39330, 39331..39375, 39376..39420, 39421..39465, 39466..39510, 39511..39555, 39556..39600, 39601..39645, 39646..39690, 39691..39735, 39736..39780, 39781..39825, 39826..39870, 39871..39915, 39916..39960, 39961..40005, 40006..40050, 40051..40095, 40096..40140, 40141..40185, 40186..40230, 40231..40275, 40276..40320, 40321..40365, 40366..40410, 40411..40455, 40456..40500, 40501..40545, 40546..40590, 40591..40635, 40636..40680, 40681..40725, 40726..40770, 40771..40815, 40816..40860, 40861..40905, 40906..40950, 40951..40995, 40996..41040, 41041..41085, 41086..41130, 41131..41175, 41176..41220, 41221..41265, 41266..41310, 41311..41355, 41356..41400, 41401..41445, 41446..41490, 41491..41535, 41536..41580