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

Tutors Answer Your Questions about Systems-of-equations (FREE)

Question 1048632: Solve the system of equations:
1) x^2+y^2 = 41 ; and
xy = 20
Click here to see answer by ikleyn(52748)

Question 1048631: Solve the system and graph the curves:
e) x^2+y^2 = 2 ;and
x-y = 4
Click here to see answer by ikleyn(52748)

Question 1048633: Determine the value(s) of k such that the circle x^2+(y-6)^2 = 36 and the parabola x^2 = 4ky will intersect only at the origin.
Click here to see answer by robertb(5830)

Question 1048628: Solve the system and graph the curves:
b) (y-2)^2 = 9(x+2) ;and
9x^2+4y^2+18x-16y = 0
Click here to see answer by ikleyn(52748)

Question 1048809: On MOnday, Harold picked up six donuts and 2 large coffees for the office staff. He paid $5.74. On Tuesday, Melinda picked up 3 donuts and 5 large coffee for the office staff. She paid $7.17. what is the cost of 1 donut? What is the cost of 1 large coffee?
Click here to see answer by Theo(13342)

Question 1048985: z varies jointly as x and y
x is 4 when y=3 and z=2.What is z if x=8 and y=6
Click here to see answer by Edwin McCravy(20054)

Question 1049738: 2x+3y=3z=5
Click here to see answer by stanbon(75887)

Question 1049738: 2x+3y=3z=5
Click here to see answer by ikleyn(52748)

Question 1049808: 8k+9=7k+6
Click here to see answer by rfer(16322)

Question 1049848: Jika x=5 dan 20+x=y+2 maka y adalah ....?
Click here to see answer by ikleyn(52748)

Question 1050023: y=3x-5 y=-2x-15
how to use the substitution method on these equations.

Click here to see answer by josgarithmetic(39613)

Question 1050023: y=3x-5 y=-2x-15
how to use the substitution method on these equations.

Click here to see answer by advanced_Learner(501)

Question 1050023: y=3x-5 y=-2x-15
how to use the substitution method on these equations.

Click here to see answer by ikleyn(52748)

Question 1050549: I have a system of nonlinear equations,
x^2+y^2=49
y^2-3x=49
I need to find the real solutions... Please help!
Click here to see answer by advanced_Learner(501)

Question 1050549: I have a system of nonlinear equations,
x^2+y^2=49
y^2-3x=49
I need to find the real solutions... Please help!
Click here to see answer by jorel555(1290)

Question 1050888: There are 10 less trumpet than saxophone players. The number of saxophone players is 3 times the number of trumpet players. How many trumpet players are there? Can't figure out formulas
Click here to see answer by josmiceli(19441)

Question 1051288: Use the Substitution Method to solve each system.
y=x+2
y=3x-4
Click here to see answer by stanbon(75887)

Question 1051637: 2x - y + 3z = 37
x + y - 3z = -16
-3x + 5z = 24

Click here to see answer by ikleyn(52748)

Question 1051686: Solve by elimination: 4x+3y=3
X+3y=1
Click here to see answer by stanbon(75887)

Question 1052266: Determine whether the given ordered pair is a solution of the system.
(1,2)
3x=-1-y
2X=4-3y
Click here to see answer by Fombitz(32388)

Question 1052494: I have this nonlinear equation:
Is there any solution of this equation at all? If so, how can I find it?
Click here to see answer by Edwin McCravy(20054)

Question 1052855: Elimination 5x-3y=-13 and 3x-5y=-11
Click here to see answer by ikleyn(52748)

Question 1052852: Elimination 5x-3y=-13 and 3x-5y=-11
Click here to see answer by Alan3354(69443)

Question 1052960: Use Gaussian elimination to solve.
The Burkes pay their babysitter $5 per hour before 11 P.M. and $7.50 after 11 P.M. One evening they went out for 44 hr and paid the sitter $27.5027.50. What time did they come home?
Click here to see answer by ikleyn(52748)

Question 1053179: The quantity M varies directly as x and inversely as y. If x = 3 and y = 14, then M = 6.
Write M as a function of x and y.
Click here to see answer by Fombitz(32388)

Question 1053183: Skech the graph of the function f(x) Logan x for the following value of a, on the ssame axes a=2 a=5
Click here to see answer by ikleyn(52748)

Question 1053387: Solve the system of linear equations below.
y = -2x + 19
y = x + 7

Click here to see answer by ewatrrr(24785)

Question 1053775: Find a two digit number where the sum of the two digits is equal to fourteen and the ones digit is four more than the tens.
Click here to see answer by jorel555(1290)

Question 1054114: As the value of x increases by 1 each time, the value of y decreases by the square of x. Is this function linear or nonlinear? Explain your reasoning
Can you help me work it out step by step using a table
Click here to see answer by stanbon(75887)

Question 1055075: A test has 10 questions. You must answer a total of 7 questions, including exactly 4 of the first 6 questions.
A) In how many ways can you choose 4 of the first 6 questions?
B) How many questions are left after you have answered 4 of the first 6 questions? How many must you still answer?
C) In how many ways can you choose questions to finish the test?
D) How many different ways are there of completing the test (meeting all of its requirements)? *** note.. I have answered question A
Thank you!
Click here to see answer by stanbon(75887)

Question 1055063: X+y%x-y=1/2. Solve for y in terms of x
Click here to see answer by Fombitz(32388)

Question 1055518: -x-5y=8
X+5y=-15
This is the elimination method, I need help help finding the coordinates
Click here to see answer by KMST(5328)

Question 1055518: -x-5y=8
X+5y=-15
This is the elimination method, I need help help finding the coordinates
Click here to see answer by MathTherapy(10549)

Question 1055551: if a number is multiplied by 7, the result is 182. the sum of that number's two digits is 8. define the variables and write the system of equations that would be use to find the number. then solve the system and find the number
Click here to see answer by ikleyn(52748)

Question 1055628: 17. When catering a wedding reception, Cathy�s Caterers charges a fixed amount plus a certain amount for
each guest. The charge for 75 guests is $312.50 and the charge for 200 guests is $750. What are the fixed charge and the charge per guest?
Click here to see answer by ewatrrr(24785)

Question 1055757: For this equation, complete the ordered pairs;
Equation; y=3
Ordered pairs;
(2, )
(-4 )
Click here to see answer by jim_thompson5910(35256)

Question 1056369: Systems with three variables (couldn't find the right category sorry)
Solve using elimination:
X+2y=2
2x+3y-z=-9
4x+2y+5z=1
I just need to know how to start it really. TIA!
Click here to see answer by Alan3354(69443)

Question 1056493: Tax preparation software is sold in the standard version for $19.95 and the deluxe version for $10 more. If a store sold 174 copies of the software for toral sales of $4011.30, how many of each type were sold
Click here to see answer by ikleyn(52748)

Question 1056674: �Como se resuelve la siguiente problema? 1/t=1/j+1/h; t
Click here to see answer by ikleyn(52748)

Question 1056914: 5/(a-4)(b+m) -3/(d-2)(n+7)
Click here to see answer by ikleyn(52748)

Question 1056987: Scott invested a total of $6300 at two separate banks. One bank pays simple interest of 12% per year while the other pays simple interest at a rate of 9% per year. If Scott earned $660.00 in interest during a single year, how much did he have on deposit in each bank?
Click here to see answer by ikleyn(52748)

Question 1057631: y= -5.3/9 + 84.2
Using the question above, estimate the percent of the adult population in the year 2009 that will marry before age 25, and round to the nearest tenth of a percent.
Click here to see answer by Fombitz(32388)

Question 1057798: A rectangular plot of land has a 10-yard diagonal and an area of 48yd^2. Find the dimensions of the plot of land
Click here to see answer by Alan3354(69443)

Question 1058250: w-z=1
Click here to see answer by Alan3354(69443)

Question 1058261: Please help me solve this 3 variable system:
x+y+z=8
x-y/3+(4/3)z=7
3z-3y-2x=7

Click here to see answer by josmiceli(19441)

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