# Questions on Algebra: Systems of equations that are not linear answered by real tutors!

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 Algebra: Systems of equations that are not linear Solvers Lessons Answers archive Quiz In Depth

 Question 113461: i am coming up with inconsistant for the following system: {2x-3y=15 { y=(2/3)x-10. am i correct in saying this system is inconsistant? Click here to see answer by stanbon(60771)
 Question 113461: i am coming up with inconsistant for the following system: {2x-3y=15 { y=(2/3)x-10. am i correct in saying this system is inconsistant? Click here to see answer by edjones(7794)

 Question 113465: Please help, i dont understand this! Are the following lines parallel, perpendicular, or neither? L1 with equation x – 6y = 24 L2 with equation 6x + y = 6 Click here to see answer by solver91311(18785)

 Question 113458: i need help solving this system: { x- y+ z=-6 {2x-3y+4z=-12 thanks for the help. Click here to see answer by bucky(2189)

 Question 113577: solve the system: {x+5y-z=4 {3x+4y+z=4 {x-y+z=0. thanks for the help. Click here to see answer by stanbon(60771)

 Question 113584: in need of help, solve the system: {x^2-100y^2=100 {x^2+ y^2=100. thanks for your help!!! Click here to see answer by stanbon(60771)

 Question 113579: Can someone help me solve the system: {y=3x+9 {y=x^2-2x-5. thanks so much! Click here to see answer by MathLover1(7480)

 Question 113650: Find the slope of any line parallel to the line through points (7, 9) and (9, 8) Click here to see answer by jim_thompson5910(29613)

 Question 113711: If fifteen less than two times a number is divided by six more than the number, the result is four less than nine times the reciprocal of that number. Find the number. Click here to see answer by stanbon(60771)
 Question 113711: If fifteen less than two times a number is divided by six more than the number, the result is four less than nine times the reciprocal of that number. Find the number. Click here to see answer by Adam(64)

 Question 113710: The reciprocal of two plus the reciprocal of four equals the reciprocal of 2x. Find x. Click here to see answer by checkley71(8403)

 Question 114021: Solve the system of equations by the addition method. -4x+y= -13 8x-2y= 2 The solution is? (Type an ordered pair. Type N if there is no solution. Type I if there are infinitely many solutions.) Click here to see answer by jim_thompson5910(29613)

 Question 114043: Solve this system of equations. x+y+z= -1 2x+4y+2z= -2 -x+6y-3z= -21 Write the solution as an ordered triple. (Type an exact answer in simplified form. If the solution is the empty set, type N for each coordinate. If there are infinitely many solutions, type I for each coordinate.) Click here to see answer by josmiceli(10616)

 Question 114038: soybean meal is 18% protein; cornmeal is 9% protein. How many pounds of each should be mixed together in order to get 360lbs mixture that is 17% protein? How many pounds of the cornmeal should be in the mixture? How many pounds of the soymeal should be in the mixture? Click here to see answer by checkley71(8403)

 Question 114012: soybean meal is 18% protein; cornmeal is 9% protein. How many pounds of each should be mixed together in order to get 360lbs mixture that is 17% protein? How many pounds of the cornmeal should be in the mixture? How many pounds of the soymeal should be in the mixture? Click here to see answer by checkley71(8403)

 Question 114016: Solve this system of equations. x+ y+ z= 1 2x+y+2z= -2 -x+y-3z= -21 Write the solution as an ordered triple. ( ) (Type an exact answer in simplified form. If the solution is the empty set, type N for each coordinate. If there are infinitely many solutions, type I for each coordinate.) Click here to see answer by ankor@dixie-net.com(16523)

 Question 114583: Write the standard form of the equation of the line that passes through the given point and has the given slope (0, 4), m = 1 I get -4 = x-y Am i anywhere close to getting this correct? Any help would be appreciated. Thanks. Click here to see answer by jim_thompson5910(29613)

 Question 114582: Write the standard form of the equation of the line that passes through the given points (-1, -2), (0, 3) Click here to see answer by checkley71(8403)

 Question 115237: Please help me understand how to writh an equation of the line through the points (4,-5) and parallel to the line 2x-3y =4 in standard form. Thank you Click here to see answer by jim_thompson5910(29613)

 Question 115307: Multiply. (x- 1/3)(x+ 1/3) x minus one-third multiplied by x plus one-third I am not sure how to begin Click here to see answer by elima(1433)

 Question 115306: Multiply. (x- (1/3) (x+ (1/3)) X minus one-third multiplied by X plus one-third. I am not sure what to do. Click here to see answer by checkley71(8403)

 Question 115431: we have been studying systems of nonlinear equations in two variables. Question: Solve: x^2-y^2=1 and x^2+y=7 I started by isolating the y variable on the 2nd problem y=7-x^2 Then I know I need to use addition or substitution method to solve: I picked substitution method. x^2-(7-x^2)^2=1 x^2 -(49-14x^2+x^4)=1 x^2-49+14x^2-x^4=1 changed signs because of negative sign. -x^4+15x^2-49=1 combined like terms -1 -1 -------- -x^4+15x^2-50=0 0=x^4-15x^2+50 rewrite for better understanding A=x^2 Use this in replacement of x^2 0=A^2-15A+50 (A-10) (A-5) Factor A=10 A=5 Now I place x^2 back in for A x^2=10 x^2=5 This is where I get lost, I know on old problems I would use my radicand/square root symbol over each and x would equal a square root ie: x^2=1 x^2=9 x= +/-1 x= +/-3 and my answers were: (1,3) (3,1) (-1,-3) (-3,-1) Please help me finish this problem:) It's been 2 days trying to figure out what I'm doing wrong. Click here to see answer by vertciel(183)

 Question 117018: could you show me how to graph this; Solve the system by addition. 5x – 4y = –5 x – 2y = –7 The answer I got was x-3; y=5 Thank you so much! Click here to see answer by jim_thompson5910(29613)

 Question 117338: Is it possible to get the hypotenuse of a right angle when only knowing the length of one side of the angle. I have a right angle which has the base of 35mm and I do not know the other side or the hypotenuse, What is the formula and/or the hypotenuse of the other side. Click here to see answer by stanbon(60771)

 Question 117425: graph each system one solution no solution many solution 4x-2y=-6 2x-y=-3 Click here to see answer by Fombitz(13828)

 Question 117533: What are the steps to solving a system using substitution. example: y=x+2 y=2x-1. Click here to see answer by checkley71(8403)