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

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

Question 540775: solve -19 less than or equal to 3x-2 less than or equal to -1
Click here to see answer by stanbon(75887)

Question 540988: Please help me solve this problem:
Write an equation for the following points
x y
80 160
84 181
68 121
81 166
91 200
94 227
75 140
88 189
Click here to see answer by KMST(5328)

Question 541447: how do you solve -5x+2y=-10
3x-6y=-18

Click here to see answer by boilpoil(127)

Question 541828: The tens digit of a two-digit number is 1 more than four times the units digit. If the sum of the digits is 6, find the number
Click here to see answer by htmentor(1343)

Question 542051: Solve the following 3 variable equation by using the elimination method.
x+y-z=3
x-3y+2z=-2
3x+y-3z=-1
Click here to see answer by Edwin McCravy(20054)

Question 542492: Write the equation in slope-intercept form of the line that has a slope of 3 and contains the point (4, 9).
Click here to see answer by friesr(113)

Question 544109: Write a rule for a nonlinear function such that y is negative when x = 1, positive when x = 2, negative when x = 3, positive when x = 4, and so on.
The entire problem confuses me. I have no idea what its even asking besides it wants an equation
Click here to see answer by ankor@dixie-net.com(22740)

Question 545778: solve x+y=7 and 3x-2y=11 by substitution methood
Click here to see answer by saifoo.khan(162)

Question 545812: -3x^2-5x-10=0 solve for x
Click here to see answer by JBarnum(2146)

Question 546335: Hi, I need to solve for "F" in the following equation:
P = L + (SQ)/F
the first step I did to isolate F was to move the L,
P-L = (SQ)/F
then do I multiply both sides by 1/SQ to clear the fractions?
Thank you for your help.
Lynn
Click here to see answer by stanbon(75887)

Question 546395: A chemist wants to make 40 liters of 22.5% acid solution. She is going to make it by mixing a 10% acid and a 30% acid solution. How many liters of each will she need?
Click here to see answer by nerdybill(7384)

Question 546933: Please help me solve this
As you ride the Ferris wheel in park,your distance from ground varies sinusoidally with time.You are the last seat filled,and the ride starts immediately.Let it be the number of seconds that have elapsed since you got on.It take you 10 seconds to reach the top,56feet above the ground.the diameter of the wheel is 50 feet. sketch the graph nd write an equation to represent your distance from ground..
(if graph can not be sketch on email its ok..but if it can so please)
THANK YOU
Click here to see answer by Alan3354(69443)

Question 547273: X^(2)-7x=14
Click here to see answer by stanbon(75887)

Question 547716: what is the solution if your answer to a system is 5=-9
Click here to see answer by mananth(16946)

Question 547576: Mark has one less than twice the number of CD''s PHillip has. Together they have 65 CD'S. How many CD's does each boy have?"
I need to show my work on this one. I have a similar problem that I have the answer to. I worked it up and missed one step. This one my mother knows the answer, but not how to put it in algebra form.
Thank you for your time, VJ (and his mom)
PS: I'm in 8th grade.
Click here to see answer by scott8148(6628)

Question 548483: Good afternoon,
Hello i have homework on slope intercept equations and i needed help. Here's the problem it says line through the points (0, -8) and (2, -2) i have to put that in slope intercept form.
Click here to see answer by KMST(5328)

Question 548001: solve systems of equations algebraically: y=2x^2-4x-5 and 3x-y=1
Click here to see answer by KMST(5328)

Question 548805: 2x+y=1
x=y+8
Click here to see answer by mathie123(224)

Question 548967: what is the sum of (7x-8y+2z) and (2x-7y+5z)
Click here to see answer by mananth(16946)

Question 548967: what is the sum of (7x-8y+2z) and (2x-7y+5z)
Click here to see answer by mathie123(224)

Question 549378: If 27 is added to a two digit number, the result is a number with the same digits, but in reverse order. The sum of the digits is 11. What is the original number?
Can you please solve this for me step by step?
Click here to see answer by stanbon(75887)

Question 549416: Please see how to solve the following algebra word problem. I do not know where to start.
A man bought 3 shirts and 8 pairs of slacks for $237. At the same store, another man bought 5 shirts and 3 pairs of slacks for $147. Find the cost of 1 shirt and 1 pair of slacks.
Thank you,
Natasha
Click here to see answer by scott8148(6628)

Question 549423: Please help me solve the following:
Which ordered pair is the solution of the following system of equations?
3x+2y=4
-2x + 2y= 24
A. (-4,8) B. (-4,-8) C. (2,-5) D. (2,-1)
How do you get this answer
Thank you,
Natasha

Click here to see answer by Alan3354(69443)

Question 549413: Solve the given system of linear equations for X:
4X + y= -11 and X + 2y= 6
Please show how you get the answer
Thank you,
Natasha
Click here to see answer by ankor@dixie-net.com(22740)

Question 549455: The equations of two lines are given as x + 3y = 0 and 2x - y= -7. What are the coordinates of the point of intersection.
How do I solve this
Thank you,
Natasha
Click here to see answer by TutorDelphia(193)

Question 549488: 8x + y = 74
3x + 197 = 363
Please help me solve this problem! i have already tried -1106/3 and 166/3 and made it into a decimal but it doesnt work! please help!
Click here to see answer by mananth(16946)

Question 549653: How do you solve for x and y in the equation x^2 - xy = 823?
Click here to see answer by mananth(16946)

Question 549857: solve the system by substitution 9x+8y=4, 8x-8y=-72
Click here to see answer by jim_thompson5910(35256)

Question 549954: The equation x3 +3xy + y3 = 1 is solved in integers. Find the possible values of x-y
Click here to see answer by Alan3354(69443)

Question 549954: The equation x3 +3xy + y3 = 1 is solved in integers. Find the possible values of x-y
Click here to see answer by Edwin McCravy(20054)

Question 549954: The equation x3 +3xy + y3 = 1 is solved in integers. Find the possible values of x-y
Click here to see answer by richard1234(7193)

Question 550164: Find the sum of first 10 term in the following pattern ?
3,5,8,13,21,34,55. . .
Click here to see answer by Alan3354(69443)

Question 550672: What is the solution to the following system:
3x � 2y + 2z = 30
�x + 3y � 4z = -33
2x � 4y + 3z = 42
Click here to see answer by Alan3354(69443)

Question 551095: Simplify
-x^2y^2/x^1/2y^0
Click here to see answer by mathstutor458(57)

Question 551487: 12x=4(x+5)
Click here to see answer by saifoo.khan(162)

Question 552086: What is the solution to the following system of equations?
y = x2 + 10x + 11
y = x2 + x � 7
Click here to see answer by neatmath(302)

Question 553279: i need help with with my algebra 1 homework.
the problem is m=4n+11 and -6n+8m=36
Click here to see answer by mananth(16946)

Question 553631: graph system of equations and describe it as consistent and independent, consistent or dependent, or inconsistent.
y=-x-2
x+y=-4
Click here to see answer by mananth(16946)

Question 553920: 3x+7y=33
-7x+y=27
Solve using the substitution method.
Click here to see answer by rfer(16322)

Question 554262: System of Equations:
A pet store currently has a total of 45 cats and dogs. There are 7 more cats than dogs. Find the number of cats and dogs in the store.
Click here to see answer by TutorDelphia(193)

Question 554545: solve the system
3x+3y=3
-3x-2z=-11
y+z=-1
Click here to see answer by Edwin McCravy(20054)

Question 554827: system of Equations and inequalities
There are 2 triangles which I can't draw, imagine them between the letters and numbers. Could someone please help with this? Could you show all work and explain steps for me so I understand.
The triangle on the left has a perimeter of 14. The triangle on the right has a perimeter of 21. What are x and y?

1st triangle has a y on each side and x at bottom the other triangle has 5/4y on each side and 3x at the bottom.

Click here to see answer by ankor@dixie-net.com(22740)

Question 555662: y=-x+10
y=x+2
Click here to see answer by Maths68(1474)

Question 555936: How do you find the slope of a line that is not linear?
Click here to see answer by KMST(5328)

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