math..solve for u again

156,312 results, page 7
  1. algebra

    x+1 -x+2 = x+3 ____ _____ ____ 2 3 4 How do I solve this equations? These are fractions mi don't know I'm going to assume your problem is this: (x+1)/2 - (x+2)/3 = (x+3)/4 ...and you are trying to solve for x. If so, here's how you would go about it:
  2. Math

    Solve 2x-y+3z=8 x-6y-z=0 -6x+3y-9z=24 Did you notice that your third equation has the same normal as the third one? So visually I see two parallel planes intersected by third non-parallel plane, namely the second equation. So solve equations 1 and 2, and
  3. algebra

    How do you solve 1/16=64^(5x-4)? thank you Notice that 16 and 64 are both powers of 2. 2^-4 = 2^6(5x-4) take log base 2 of each side.. -4=6(5x-4) solve for x wow, okay thanks!!! so its -.93?
  4. Maath

    5(4r-3c)-2(7r-9c)=0 solve for r This is all I know how to do and don't know if it's even right. Or what to do from here. 5(4r-3c)-2(7r-9c)=0 solve for r 20r-15c-14r-11c=0 6r-26c=0
  5. Managerial Economics

    Can someone please help me solve this equation: Qs=1,050 and Qd=2000-2.5P. Solve for the equilibrium price 'P'
  6. algebra

    V=1/3*6300*7 solve for V The answer is V=14700 how do you change 1/3 to a decimal or use 1/3 to solve the equation?
  7. algebra 1

    Solve the Foll by substitution x=1/5y 3x+2y=26 So, substitute 1/5y for x in the second equation. Then solve for y. Can you take it from here? yes thanks I figured it out. Danielle
  8. Algebra 1

    I'm so confused on how to solve this problem~ a-b(x+c)=d I'm supposed to solve for x and all of the variables are positive -_- I'm lost
  9. Algebra 2

    1. Convert the 5th root of x^3 into a rational expression. 2. Solve i^63 I don't know how to solve these so please help me!!!
  10. geometry

    The measures of the angles in a quadrilateral are represented by x, 2x, 3x, and 3x. Write an equation that would allow you to solve for the value of x. Solve for the value of x
  11. Algebra

    Solve. Pretend the paranpheses are absolute value bars. (t-7) + 3 = 4 I understand how to solve it, but what were your answers for a or a few "t"s? Thank you!
  12. algebra

    solve the formula for the indicated variable solve the volume of a rectangular prism v=lwh, for h
  13. Please Reiny Solve it For me Again! please......

    Solve for the value of x: log5(x-2)+log8(x-4)=Log6(x-1)..For your information that 5,8 and 6 are bases not just multipliers. Thank you.
  14. Algebra

    How to solve this x(1+x)=2 Find all the real solutions I can't remember how to solve this... the answers are -2, 1 I think...
  15. Geometry-Solve for x

    ok so I have to solve for x in this problem. and I have tried and tried to figure it out but I cant. 12(4x-2)=9(3x+2) I distributed them but after that when I try to simplify im lost. can someone please help???
  16. Algebra

    How do I solve: Translate "y more than 4 is -36". Then solve the problem. Hope someone could help me out with this annoying question!
  17. Algebra 2

    I would really appreciate it someone helped me with this information. 1. Solve the inequality: |3 - 3x/4| >= 9 Solve for x 2.(x - 2)(x + 1) = 4 and factor completely 64 + a^3
  18. Algebra 1

    solve 3y+6x+3=9+6x. Would you be so kind to help me solve this problem so that I can understand the steps? Thank you kindly.
  19. for Drbob222

    thanks but i do need help to solve the third part also, I did get these equations but don't know how to put them together to solve the third. thanks for helping further!
  20. Algebra

    Please how I solve this equation giving the domain of -3 I know that i have to replace the -3 where the x is but I do not know how to solve with the fraction. Thank you. -2x+1/3y=4
  21. Algebra

    Please how I solve this equation giving the domain of -3 I know that i have to replace the -3 where the x is but I do not know how to solve with the fraction. Thank you. -2x+1/3y=4
  22. Algebra

    Solve for p 3 (p + q) = p A. q = -2/3 = p*** B. q = -3/2 = p C. p = -2/3 = q D. p = -3/2 = q Solve for r d = rt A. r = dt*** B. r = t/d C. d/t D. r = d - t Find the width of a rectangle with a perimeter of 90 and a length of 15 A. 90 B. 15 C. 45*** D. 30
  23. maths

    Solve the set of linear equations by the matrix method : a+3b+2c=3 , 2a-b-3c= -8, 5a+2b+c=9. Solve for a
  24. Ninth grade

    How would I solve this? I'm totally stumped and I need some help. Solve by elimination 3x-2y=-4 and under it is 7x-4y=-6 Any clue? Thanks!
  25. Algebra 2

    How do I do this f(x) = x - 5 (x + 4)^(1/2) when f(x) = -5 I know I can just guess and chekc but I want to know how to do this algebraically by subsituting in -5 and trying to solve for x which I don't know how to do... so -5 = x - 3 (x + 4)^(1/2) how do I
  26. Math

    Two shirts cost $12.50. How much will it cost to buy five of the shirts? Select all the pairs of ratios that form a proportion. Which are: 1/6,4/20 7/9,28/36 14/18,21/27 30/80,6/18. For which value of m is 4/16=m/24 a proportion? Solve the proportion.

    How do i solve inequalitites with three variables. I still can't figure it outplease help. x+y=1 y-z=-3 2x+3y+z=1 THE ANSWERS ARE3,-2,1 HOW DID THEY GET THAT ANSWER. This can be solved a number of ways. 1) subsitition 2) determinants 3) matricies.
  28. Math

    LOL I can't figure this out. It should be easy it's been years since I've been in school and my son has no idea. The product of two numbers is 63. Their sum is 16. What are the numbers? Thanks for the help! Let's factor 63. 1 x 63; 3 x 21; 7 x 9. Which of
  29. Math

    You are given two equations which are both true, and you are asked to solve for both x and y. You plan to solve this set of equations by substituting part of one equation into the other so you end up with an equation that contains only x's or only y's. The
  30. Help!!!!

    2. The line y = 4x - 7 crosses the y axis at: (4, 0) (0, 4) (-7, 0) (0, -7) (0,-7). if u get a graphing calculator then u would be able to solve easily. Set x=0 and solve for y to get y = 4*0 - 7 = 0 - 7 so y=7 The coordinate is (0,-7)
  31. trigonometry

    solve for 2cos2x=tan225 and, solve using transformation method cosx+ root2sinx= root3 THANKS!
  32. Algebra Problem

    I can't fugure out how to solve (6-3w)(-w to the second power) please help It has to equal something in order to solve.... i ment how do i simplify it (6-3w)(-w^2 ) -6w^2+3w^3
  33. college algebra

    Solve absolute value inequality, use interval notations. |4+2x|-3> I know the answer is x>2 or x<-6 But I'm unsure how to solve it. Thanks
  34. Pre algebra

    How do I solve Quadratic equations by factoring? (for example how would I solve n2 - 10n = -21 if I was supposed to get the answers 7 and 3?
  35. Alg 1

    Solve the proportion: 4/x = (radical sign over 11, not -1) 11 - 1/3 Please solve and explain. My answer does not match any of my choices.
  36. college algebra

    Solve, what is the easiest way to solve this equation? 9x^4+4=13x^2 and x^6-19x^3=216 Thanks, in advance..
  37. Algebra

    Solve each inequality algebraically:how do I solve this problem? What is the answer? Show the work. x+4/x-2 less than equal 1 thanks for your help
  38. Physics

    Forcefriction=(Psin37+15*9.8)*.70 So Pcos37 must equal to the force, solve for P. how to get the magnitude of P??how to solve for P. thanks a lot~~
  39. pre-algebra

    7x-12=x+2+2x-3x Solve for x Combine the terms on the right hand side first. Then add 12 to both sides and solve for x.
  40. 3rd grade

    ANTONIO SAID TO SOLVE 506-288 i Cn think of 5 hundrdeds as 50 tens. how might this help him solve the problem?
  41. Algebra

    i forgot how to solve these types of problems.. 2x^2-18x=0, x^2=6x+7, 6y^2+5y-6=0 Also SOLVE FOR X CORRECT TO 4 DECIMAL PLACES: x^2+6x+2=0 2x+4=3x^2
  42. Algebra II

    Solve: (2x – 3)(3x – 5) = 0 Solve by the quadratic formula. Leave the square root in your answer: 3x2 – x – 8 = 0
  43. maths

    y varies partly as the square root of x when x=9 and y=3. Write the formular connecting them solve for x when y=17 solve for y when x=24
  44. algebra

    solve the formula for the given letter. Assume all variables represent non-negative numbers. E=jc^2 solve for c
  45. Advanced Mathematics

    Please help me solve this; Solve these inequalities and graph your solution on a number line (i) 2x-1/5 ≥ x/2 - 2
  46. Algebra II

    We are learning how to solve systems using elimination. 2y - 1 = 3x - y / 5 3x - 4 / 8 = y/4 How would I begin to solve this? I'm mostly unsure of how to simplify the fractions. Thanks so much :)
  47. math,correction

    can someone correct these for me i'll appreciate it thank. dirctions: solve 3x-7=2x+8 my answer: x = 15 directions: solve 2/5x=-10 my answer: x = -25 Directions: solve -3(x+1)=2(x-8)+3 my answer: x= -3.2 1 looks ok. Show your work on 2 and 3 and we can
  48. physics

    how many excess electrons must be placed on each of two small metal spheres placed 3.00 cm apart in a vacuum if the force of repulsion betwen the spheres is to be 0.000000008 N? how do i solve this problem??=( help please.thx. Use Coulomb's Law: F = k
  49. Solve Inequality

    Solve the inequality. Express your solution using interval notation and please show all of your work. x(x + 6)(8 – x) >= 0 I need help, I guess I'm not understanding the interval notation portion. I know, that when 0 <= x <= 8 and x <= -6
  50. Math

    How do I solve this question? "Rory Gilmore earns $20 per hour during the week and $30 per hour for overtime on the weekends. One week Rory earned a total of $650. She worked 5 times as many hours during the week as she did on the weekend. Write and solve
  51. cubic function

    I am absolutly stumped at how to solve this. I know for squared functions you take the square root of both sides to solve for x but what about if one side is cubed. I know you would have to take the cubed root of the function but how do you do this on a
  52. math

    how would you solve for y in this problem: x=(y^2+3y)^(1/3) I got: y= x^3/y - 3 ? and for this problem: x= 1/[(y^2+3y-5)^3] I got: y = y/x + 5/y - 3? However, I do not know how to solve for y explicitly. I don't think quadratic formula would work in these
  53. math

    Solve by setting up the proper equation to describe the facts given and then carrying out the mathematical calculations to solve for the unknown variable(s). Three batteries are connected in series so that the total voltage is 54 volts. The voltage of the
  54. Geometry

    Solve for x. Find the angle measures to check your work. m<AOB = 4x - 2 m<BOC = 5x + 10 m<COD = 2x + 14 How do I solve for x?
  55. Algebra (please help!)

    Pretend the parentheses are absolute value bars. Solve: (x+5) < 5 The choices are: a. -10 < x < 0 b. -5 < x < 5 c. -10 < x < 5 d. -10 < x < 10 I'm not sure how to solve this and how the answers relate to the question. Please help
  56. Algebra 1

    Solve the equation by multiplying each side by the least common denominator. 2/h-2 + 4/h+1 = 0 I know the answer is 5, but I do not know how to solve the problem. Please explain further.
  57. Solve two way subtraction

    Solve each problem in two ways. Use clear and concise notation in your solutions. 8,593-2,748
  58. Calculus

    I was able to solve (e), this is the only one I don't get. Determine whether the series is convergent or divergent and say what test you used to solve it. (d) sum n=1 to infinity (5n)^(3n) / (5^n + 3)^n
  59. maths

    helo sir/madam can u help me to solve this problem solve the following simultaneous equation logx Y+logy X=5/2 xy=64
  60. Algebra

    I don't know how to solve 12x(2)-15x=0 using the quadratic equation ax+bx+c=0 with this question I am unsure of what a, b and c are supposed to be, therefore I do not know how to solve this! Please help!
  61. Precalculus

    Solve the equation x^3 - 2x + 4 = 0. ==> I know the answer is -2, but I can't seem to remember how to solve these by hand without using a graphing calculator. Any help is greatly appreciated!! :)
  62. maths

    how do i solve this equation? 2/(x+1)=1/(x-1) - (1/(2x-1)) thx Get a common denominator (x+1)(x-1)(2x-1) then, each term, multipy it out. Gather terms, solve.
  63. algebra I

    determine the minimum furnance output,b solve for a, that is solve b=27a with 2100 ft square flooring.
  64. Differential Equations

    x dy/dx + y = 1/y^2, solve using bernoulli's equation. i got to du/dx + (2u)/x = 2x(u)^(-1/2). the u^(-1/2) is obviously a problem if im going to solve it using an integrating factor. if that is not what you yourself have gotten to then please show me my
  65. PreCalc

    Solve each inequality: (1/(2b+1)) + (1/(b+1)) > (8/15) (2/(x+1)) < 1 - (1/(x-1)) My teacher told me the answer is in interval notation, and that a number line is used to solve.
  66. Geometry

    How do I solve this problem? Point P is between points L and M. LM = 10x, LP = 2x + 4, and PM = 3x + 16. Solve for x.
  67. Algebra 2 ..

    1. Solve 3=log8+3logx 2. Solve 2logx-log4=0
  68. natural log

    I need to solve for k'eq: -13.8= -2.479 ln k'eq -11.321= ln k'eq How do I get the ln out of the way in order to solve for k'eq? thanks!
  69. Algebra

    Can someone please help me with this? I'm not looking for the answer, just a detailed explanation on how to solve this. Thank you in advance. Solve: 16(t - 1) + 10 > 8(t +2) + 4(t - 1) + 4t
  70. Algebra

    I've been try to solve this equation and I can't seem to get far. Do you add 3 to both sides? If not please explain to me how you solve this. Thanks :) 1/2=2/5c-3
  71. algebra

    I need help breaking down the steps to solve HELP ME PLEASE solve with an exact answer. x^2 + 2x - 8

    solve this system of equations and solve for triple pair: x+y+z=8 2y+4y+2z=26 -x+8y-3z=26
  73. algebra

    Solve the system of equations. 9x + y = 2 –4x – y = –17 I don't understand how you solve this.
  74. Algebra

    Solve the equation by completeing the square x^2+6x=-7 Idk how to solve
  75. Intermediate Algebra Solve

    Solve: -1/3 - 5/4t = 3/4 - 1/6t would I cross multiply? (-1)(4t) - (3)(5) = (3)(6t) - 4 I am stuck here, please help.
  76. Algebra 2

    Solve for B: P.S. How do you solve for variables? Show your work. 3V=4(pi)a^2(b) I would truly appreciate it, if you helped! ^-^
  77. Help help help!!!!!!!!!

    Simplify 18. -(-4)+3= Solve equations of the form x+a=b solve 26. 6.3=t+2.9 30. -8=14+(d+-6) 32. 312.9+163.4+b 34. - 11/5+w=-4/5 Thank You very much!!!
  78. algebra (solve for y)

    0=e^(2y)-e^(y) Need to solve for y here, don't understand why answer is -ln(2) in the book. Thanks.
  79. math

    How do you solve a problem that asks you to find the 500th term? A beach ball has six vertical sections colored white, orange, yellow, blue, red, and green. If you spin the ball so that 500 colors go by and the first color is white, what is the 500th
  80. Math 102

    if you have a pizza with a diameter of 20 that is cut equally into 4 pieces, one way horizontal and one way vertical. how do i figure out where to place 2 non-center vertical cuts so that the pizza has 8 equal parts? i found the area for the circle to be
  81. Child development

    Using these steps, consider a cognitive “problem” a young child might encounter that he/she needs help with (such as putting together a puzzle, sequencing – putting items in order, sorting by color or size, adding, subtracting, tying shoes, learning
  82. math written assignment help

    A’s DJ service charges a $200 setup fee and $75 an hour after that. B’s DJ service charges no setup fee but costs $125 an hour. (4 points) Set up equations for both of the services using x and y. Determine the variables and provide an explanation for
  83. mathematics

    Solve the following differential equation: (1 + x)*(dy/dx) = y where y is a funtion of X solve by the following by: A)series expansion B) elemantary method please show working
  84. maths

    Solve the following differential equation: (1 + x)*(dy/dx) = y where y is a funtion of X solve by the following: A)series expansion B) elemantary method please show working
  85. Physics

    A= 2i + 3j - k, B= 4i + 2j - 2k, Find a vector x parallel to A but has magnitude of B ? Answer is √12/7 (2i+3j) - K solve it , i have mcat admission test please solve it
  86. Algebra

    I am trying to solve the following using the Quadratic Formula but I am confused. Can you explain the steps? Solve (find all complex-number solutions): t^2 + 3 = 6t Thank you
  87. mathematics for management

    helo sir/madam can u help me to solve this problem solve the following simultaneous equation logx Y+logy X=5/2 xy=64
  88. Algebra

    Solve by using your knowledge of the Distributive Property and combining like terms. 1. 5x-(9x-10)=34 -4x-10=34 -4x=44 X=-11 Did I solve this correctly? If not can someone please show me how to get the correct answer?
  89. algebra

    Solve the formula for the variable given. P = r-c/n solve for c. (business) I have worked this problem so many times I'm getting confused. please help. Thanking you in advance
  90. maths

    Solve the following differential equation: (1 + x)*(dy/dx) = y where y is a funtion of X solve by the following: A)series expansion B) elemantary method please show working
  91. maths

    solve this equation;5t(6 times 10 neg.3)=(6 times10neg -2) does it look like this: t =variable 5t(6 X 10 - 3) = 6 X 10 - 2 are there any parenthesis missing? If you have only t that means it wants you to solve for the varible t.
  92. trigonometry

    Solve the following right triangles: a. a=117 ft, b=16.35 ft b. B=8 degrees 29',and a=32.8 ft for a. got 118.14 by Applying the Pythagorean Theorem a^2 + b^2 = c^2. can you show me the steps of how to solve b.
  93. Another Geometry question

    B is between A and C. AB=4x+3 BC=3x-2 AC=57 What is the value of x? Solve the relationship AB + BC = AC Substitute the appropriate algebraic expressions for the line lengths. The result will be the equation 7x + 1 = 57 Solve that.
  94. Chemistry

    How do you solve for enthalpy of vaporization? I know it's liquid to gas, but I can't figure out how to solve an actual problem like C2H4O2. Could you please explain?
  95. Algebra

    8. Solve the system using elimination. x + 2y = 1 4x + y = 11 So I added both equations and got 5x + 3y = 12 but am unsure of where to go next with it. I am having the same problem on another question just a bit different than this in which it just asks to
  96. Math

    2004 (2nd) course2-3.2 Let P and Q be points on the line y=x+4 where the x-coordinates of P and Q are p and p+1,respectively.Let O denote the origin. (1)For 2 vectors OP(vector)and OQ(vector),the inner product OP(vector)*OQ(vector) takes its minimum when p
  97. maths

    use the substitution method to solve the linear system. 1. 3x=9 -x+2y=9 3x/3 = 9/3 x = 3 -x(3)+2y = 9 -3+2y = 9 2y = 12 y = 6 is (3,6) correct? =========== also, can you please tell me how to solve these? use the linear combinations to solve the linear
  98. math

    kylie answered my question but did not go into detail how to solve the problem. Here's the problem I need help with. Given two numbers whose sum is 56. Six times the larger is 72 more than 5 times the smaller. Find the numbers. I need to know step by step
  99. math

    solve the equation x^3-5x^2-4x+20=0 I need a hint on how to solve this Look for the first root by graphical means or trial-and-error. Note that when x=2, x^3-5x^2-4x+20 = 8-20 -8 +20 = 0. Therefore 2 is one root and x-2 is a factor. Next, divide x-2 into
  100. Math

    Draw a diagram to solve this problem: Ajax is 8 km due west of Oshawa. Uxbridge is 6 km NW of Oshawa. How far is it from Ajax to Uxbridge? Explain whether you have enough information to solve this problem?