# 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 325444: I am trying to figure out the solution for y=x^2-4. I came up with 3 plots. they are (0,-4)(-3,0)(2,0). I am being told that (-3,0) is incorrect. I then need to graph it. any help would be appreciated. Click here to see answer by Alan3354(31509)

 Question 325769: I am taking and online algebra II class and I do not understand how to solve this equation (y^2-9)(9y^2-9y+8) the instructions saty multiply. Would I use the foil method? This is what I came up with (y^2-9)(9y^2-9y+8) Y^2*9y^2=9y^4 y^2*-9y=-9y^3 y^2*8=8y^2 -9*9y^2=-81y^2 -9*-9y=81y^2 -9*8=72 9y^4-9y^3+8y-81y^2+81y^2-72 9y^4-9y^3+8y-y^2-72 Is this correct? Click here to see answer by jim_thompson5910(28704)
 Question 325769: I am taking and online algebra II class and I do not understand how to solve this equation (y^2-9)(9y^2-9y+8) the instructions saty multiply. Would I use the foil method? This is what I came up with (y^2-9)(9y^2-9y+8) Y^2*9y^2=9y^4 y^2*-9y=-9y^3 y^2*8=8y^2 -9*9y^2=-81y^2 -9*-9y=81y^2 -9*8=72 9y^4-9y^3+8y-81y^2+81y^2-72 9y^4-9y^3+8y-y^2-72 Is this correct? Click here to see answer by nyc_function(2733)

 Question 325853: find the solution to the system of equations: x+y=1 and 2x+y=3 Click here to see answer by solver91311(17072)

 Question 326894: Your piggy bank has a total of 46 coins in it; some are dimes and some are quarters. If you have a total of \$7.00, how many quarters and how many dimes do you have? Can you show all of your work so I can understand it better? Thanks in advance! Click here to see answer by Fombitz(13828)
 Question 326894: Your piggy bank has a total of 46 coins in it; some are dimes and some are quarters. If you have a total of \$7.00, how many quarters and how many dimes do you have? Can you show all of your work so I can understand it better? Thanks in advance! Click here to see answer by solver91311(17072)

 Question 326888: Tony and Belinda have a combined age of 56. Belinda is 8 more than twice Tony’s age. How old is each? Can you sow all of your work so I can understand it more? Thanks in advance! Click here to see answer by jessica43(140)

 Question 327109: solve. X^2+Y^2=16 Y^2=x+4 list the solutions. thank you for the help!! Click here to see answer by stanbon(57953)
 Question 327109: solve. X^2+Y^2=16 Y^2=x+4 list the solutions. thank you for the help!! Click here to see answer by Alan3354(31509)

 Question 327104: solve this system of equations using the addition method -8x + 3y = -5 8x - 2y= 6 Click here to see answer by Fombitz(13828)

 Question 328073: solve using elimination method: 2x+6y=7, 3x+9y=10 my answer 41..don't know what i am doing wrong Click here to see answer by solver91311(17072)

 Question 328418: Can someone please walk me through this? Solve the system of equations by substitution for real values of x and y. x^2 + y^2 = 58 y = x^2 - 2 (_____,_____) (smaller x value) (_____,_____) (larger x value) Thank you, Edgar Click here to see answer by Fombitz(13828)

 Question 328421: Can someone please walk me through this? Solve the system of equations for real values of x and y. (Sort your answers in increasing order, first by their x -values, then by their y -values.) 4x^2 - y^2 + 5= 0 3x^2 - 4y^2 + 33= 0 (___,___) (___,___) (___,___) (___,___) Thank you, Edgar Click here to see answer by Fombitz(13828)

 Question 328632: Solve the system x + y = 4 x + z = 4 y + z = 4 Click here to see answer by scott8148(6628)

 Question 328871: Solve each system by substitution {y=x-1} {x+y= -7} Click here to see answer by Fombitz(13828)

 Question 328869: Use a system of equations in two variables to solve this problem: A father paid \$119 for his family of 7 to spend the day at Magic Waters waterpark. How many tickets did he buy? Admission _________ Adult ticket - \$21 Child ticket - \$14 Click here to see answer by checkley77(12569)

 Question 328962: Use a system of equations in two variables to solve each problem. I already know that the answer is 1 mph. Can you help me determine how? A kayaker can paddle 8 miles down a river in 2 hours and make the return trip in 4 hours. Find the speed of the current in the river. Click here to see answer by nyc_function(2733)
 Question 328962: Use a system of equations in two variables to solve each problem. I already know that the answer is 1 mph. Can you help me determine how? A kayaker can paddle 8 miles down a river in 2 hours and make the return trip in 4 hours. Find the speed of the current in the river. Click here to see answer by Alan3354(31509)

 Question 328957: Classify each system as consistent or inconsistent: {x/3+y-4=0 {-3y=x-12 Click here to see answer by Fombitz(13828)

 Question 329191: Please show me how to solve the following system of equations? 5x+4y=25 and 3x+4y=15 Thank you, Click here to see answer by solver91311(17072)

 Question 329223: 4x - 7y + 11 = 20x + y - 4, solve for y Click here to see answer by stanbon(57953)

 Question 329243: Solve this system algerbraically. 2x+ 6y = 17 2x -10y= 9 Click here to see answer by Alan3354(31509)
 Question 329243: Solve this system algerbraically. 2x+ 6y = 17 2x -10y= 9 Click here to see answer by solver91311(17072)

 Question 331127: The difference of two numbers is 10. Two times the larger number is 20 more that the smaller. What are the two numbers? Click here to see answer by mananth(12270)

 Question 331464: complete the ordered pair 3x + 2y = 16 (4,__);(__,1) Click here to see answer by rfer(12727)

 Question 333579: Solve the literal equation -Ax + By = C for y. Click here to see answer by unlockmath(1614)

 Question 334095: Solve this equation using any method. x+y-z=-20 2x-y+z=11 Click here to see answer by nyc_function(2733)

 Question 335495: Solve the systems of equations by graphing.Then Classify the system. 3x-9y=72 2x-6y=-12 Click here to see answer by stanbon(57953)