# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 34639: Hi, I would appreciate your help simplifying this. Please show me how this is a hard one! 4xy^3/16x^2y Thank you Click here to see answer by Earlsdon(6287)

 Question 34640: Hi, Can you please show me how to simplify this? 4x(x-2)-3x(x+4)Please show me in steps. Thank you so very much. Click here to see answer by checkley71(8403)

 Question 34485: Hello! Thank you for your time. I've been trying to solve this for a week now. Solve: X=51n(7+3y)for y. The answer is supposed to be: x - e5-7 ____ 3 This is the same answer without the Division bars x e5-7 3 Click here to see answer by Prithwis(166)

 Question 34839: slove this inequality j - - 8 < 4 4 Click here to see answer by stanbon(57282)

 Question 34810: A rock falls from a tower that is 53.9 m high. As it is falling, its height is given by the formula h = 53.9 - 4.9t^2. How many seconds will it take for the rock to hit he ground (h=0)? Round to the nearest tenth, if necessary. A) 7 sec B) 592.9 sec C) 7.3 sec D) 3.3 sec Click here to see answer by checkley71(8403)

 Question 34852: The average distance between the earth and the sun is 93 million miles. Using the velocity of light, find an approximate value for the amount of time that it takes a light ray to travel from the sun to the earth. I have the velocity of light, its 186,000 miles per second. I dont really understand how to do this, can someone please help, thanks. Click here to see answer by stanbon(57282)

 Question 34906: The kindness of your help is appreciated, Thank you! solve and show work X+3 - 2 = 4 ******* NOTE (X+3 IS ENCLOSED IN A RADICAL SYMBOL) *** Click here to see answer by Earlsdon(6287)

 Question 34904: Your wonderful help is greatly appreciated! Thanks so very much! SIMPLIFY MUST SHOW WORK x^2 - 49 / x^2 - 2x - 35 Click here to see answer by Earlsdon(6287)

 Question 34889: if you hang a cable (like a suspension bridge) between two points, it may look like a parabola but it is not. What is the equation of a cable suspended between two points? Click here to see answer by Earlsdon(6287)

 Question 34913: MUST SHOW WORK! Solve 5/x-2 - 2/x+2 = 3/x^2-4 I really would appreciate the input of your help! Click here to see answer by longjonsilver(2297)

 Question 34941: Please help me with htis word problem. Thanks again! Two water pipes can fill a tank with water in six hours. the larger pipe working alone can fill the tank in 9 hours. How long will it take the smaller pipe working alone to fill the tank? MUST SHOW WORK! Click here to see answer by mbarugel(146)

 Question 34967: I am having trouble with this equation problem : 2z+4=5z-8 I was taught to isolate the variables, i.e. 2z+4-4=5z-8-4 2z=5z-4 But sometimes i don't know which part of the question I should isolate first. Can you explain to me the formula/rule? Click here to see answer by checkley71(8403)

 Question 35000: ok,i am in 6hth grade and im struggleing in algebra ok.example- x+18=2/12 i dont get the fractions! and i m failing math! Click here to see answer by checkley71(8403)

 Question 35004: 1. Paula is 6 years old. Her uncle is 4 times as old. How old will Paula be when she is half as old as her uncle? Please explain and answer.. thanks Click here to see answer by checkley71(8403)

 Question 35002: Using Equations to solve world problems.. Please explain how to solve and the answer.. 1. George had 9 times as many stamps in his collection as Daniel has. Bryan has 2 times as many stamps as Daniel. The combined stamp collection of the three boys is 144. How many stamps does each boy have? I need to Write the equation: Solve for "n" : Answer: Thanks Click here to see answer by checkley71(8403)

 Question 35001: Please explain to me the proper way of solving this problem. Could you please include the answer also? 1) Christina has \$22.00 more than 3 times as much money as Melissa has. Together they have \$122.00. How much money does each girl have? I need to write the equation : Solve for "n" : Answer: Thanks.. Click here to see answer by stanbon(57282)

 Question 35060: find the equation of a straight line perpendicular to a line (5;-2) and (0;5) and through the point (3;-2) Click here to see answer by venugopalramana(3286)

 Question 35057: Please show all work Add. 3/x + 2 - x/x - 3 Any help would be greatly appreciated. Thank you for the kindness! Click here to see answer by Prithwis(166)

 Question 35116: I am having trouble with this equation: 3x+4=2x-3 I don't know the formula. Where do I start to answer this question? Thank you for spending your time to help me! Click here to see answer by checkley71(8403)

 Question 35124: As the number of students grew, the school hired more teachers. Write an equation to show the relationship between teachers and students from the chart. S=students t=teachers Students 100 200 300 400 Teachers 7 12 17 22 I can see that the number of teachers increases by 5 with every additional 100 students but for the first 100 students there are 7 teachers. I can not figure this out. I know that it has to be simple and I just can not see it. Thanks for the help. Click here to see answer by kellytn78(2)