Questions on Algebra: Systems of Linear Equations answered by real tutors!

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Question 608019: y = 1/2x + 1
2y - x = 6
How many solutions does this system have?(:
-none, one, or ifinite?
Click here to see answer by josmiceli(19441)

Question 608022: y = x + 1
2y - x = 6
The lines whose equations are shown intersect at which point?

- (0, -2s)
- (-2s, 0)
- (4s, 2s)
Please Help!(:
-Kate(:
Click here to see answer by ewatrrr(24785)

Question 608133: A chemist needs 140 milliliters of a 33% solution but has only 11% AND 395 solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
Click here to see answer by Alan3354(69443)

Question 608284: Find the x-intercept and y-intercept of 7x+2y=13
Click here to see answer by stanbon(75887)

Question 608284: Find the x-intercept and y-intercept of 7x+2y=13
Click here to see answer by solver91311(24713)

Question 608474: use subtraction method to solve: x+y=3 and 7x-y=29
Click here to see answer by lynnlo(4176)

Question 608523: How many solutions does this system have?
�3x + 6y = 10
�3x + 6y = �4
Click here to see answer by flame8855(424)

Question 608523: How many solutions does this system have?
�3x + 6y = 10
�3x + 6y = �4
Click here to see answer by ewatrrr(24785)

Question 608540: what is the slope between the two points (2, 3)and (1, 4)?

Click here to see answer by lynnlo(4176)

Question 608512: what isthe equation of the vertical line that passes through the point (-2, -1).

what is the equation of the horizontal line that passes through the point (2, 4).

what is the equation that represents the line that passes through the point (-2, -1) and has a slope of 5.

what is the equation of the line that passes through the point (6, 4) and is parallel to y = 1/3x - 3.
Thank you for your help!
Click here to see answer by ewatrrr(24785)

Question 608727: Solve the inequality.
6y � 8 ≤ 10

Click here to see answer by deborabr(181)

Question 608973: You have to graph the linear system. then use the graph to tell whether the linear system has one solution, no solution, or infinitely many solutions. the question is -9x+6y=18 and 6x-4y=-12. This is just one problem.
Click here to see answer by lynnlo(4176)

Question 609043: Because of this Algebra, I keep receiving bad marks on my report cards and progress reports.
I had five problems that I had to do on graph paper. I did four of them, but didn't understand the rest.
15. x+2y<10, x+2y>9 (Two equations per problem. There's a little line under the equal to signs.)
16. (Again, there's a little line underneath the equal to sign.) y>-x+5, y<3x-4
My Algebra teacher just isn't too elaborate with things and doesn't really help me. If you could just explain steps to graphing these equations, my gratitude would go through the roof.
Thank you. :)
-Marissa
Click here to see answer by flame8855(424)

Question 609059: Question 3:
write the equation y = -1/7 x - 3 in standard form.
Thank you! :)
Click here to see answer by ewatrrr(24785)

Question 609119: 2x+y=7
x+3y=1
Click here to see answer by flame8855(424)

Question 609153: -2x+2y=2
-4y-2x=-22
Solve the system of equations
Click here to see answer by ewatrrr(24785)

Question 609366: I need help figuring out how to do three y squared plus five y equals twelve? I am really confused and all your help will be appreciated!
Click here to see answer by flame8855(424)

Question 609547: How do you slove the non linear system algebraically.
y=x^2+3x-5
y=2x+1
Click here to see answer by solver91311(24713)

Question 610034: Can you give me step by step how to solve Linear Equations and why you did what you did? Please do equations like -4(3r-2)=-4 and 3(h-9)+2h=3
Click here to see answer by stanbon(75887)

Question 610133: Solving for...
4x-3y = 10
x+4y = 7
Using any methood...
Solution: x = 3.21052631578947, y = 0.947368421052632
However (1, -2) also works why?
How can I solve this system and yeild the possible result (1, -2)?

Click here to see answer by ewatrrr(24785)

Question 610070: Find an equation of the line L that passes through the point
(−2, 4)
and satisfies the given condition. (Let x be the independent variable and y be the dependent variable.)
L is perpendicular to the line
2x + 5y = 10
Click here to see answer by flame8855(424)

Question 610210: How do I graph y=4
Click here to see answer by jim_thompson5910(35256)

Question 610230: I need to find out how many miles (m) it will be until the price is the same.
y = $.10m + $24,500
y = $.12m + $22,000
Click here to see answer by Alan3354(69443)

Question 610405: -4x+3y=6
y=4/3x-5
--- How many solutions does this system of linear equations have?
Click here to see answer by Alan3354(69443)

Question 610264: Find an equation of the line L that passes through the point
(−2, 6)
and satisfies the given condition. (Let x be the independent variable and y be the dependent variable.)
The x-intercept of L is 5.
Click here to see answer by ankor@dixie-net.com(22740)

Question 610513: Christine went shopping and bought each of her 9 nephews a gift, either a video costing 14.95. Or a cd costing 16.88. She spent 148.06 on the gifts. How many videos and how many cd's did she buy?
Click here to see answer by scott8148(6628)

Question 610579: how do i graph linear equations? grahing is so difficult for me and I hate to see it when I'm doing trigenometry or something like that. Please teach me. how do you solve this question:
y=-2x+1
y=x-5
Click here to see answer by stanbon(75887)

Question 610786: Which graph correctly shows the solution to this equation?
5y � 2x = 25

Click here to see answer by solver91311(24713)

Question 611022: Use the method of substitution to solve the system of linear equations.
2x-y=6
7x-3y=23
Click here to see answer by stanbon(75887)

Question 611058: please help me find the value of c
9x+cy=-16
6x-8y=-13
Click here to see answer by radh(108)

Question 611103: please help me solve this linea equation
10x+3y=27
3x-5y=73
find x and y

Click here to see answer by lynnlo(4176)

Question 611280:
Please answer immediately, I need this by Friday.:)
Click here to see answer by richwmiller(17219)

Question 611513: I am lost on this equation solution. I got the answer from the answer sheet but still can't figure out how to get there.
x/3 + y/6 = 1
x/2 - y/4 = 0
answer is 3/2, 3
How?
Click here to see answer by richard1234(7193)

Question 611900: I need help on solving linear equations by elimination by promblem is solv ing this equation : 5(2x-y)=x+20
3x+8=4x-2y please help me solve it!!!!! Its hard
Click here to see answer by Maths68(1474)

Question 612439: The smaller of two numbers is 9 less than the larger, and their sum is 38. Find the numbers.
Click here to see answer by ewatrrr(24785)

Question 612623: Divide 184 into two parts such that 1/3 of one part may exceed 1/7 of the other part by 8.
Click here to see answer by stanbon(75887)

Question 612625: The sum of two numbers is 9 and their difference is 6. What are the two numbers?
Click here to see answer by nerdybill(7384)

Question 612690: How do I solve this system?
y=5/2x-3
y=-1/2x+3
Click here to see answer by Alan3354(69443)

Question 612624: At a party, Colas, squash and fruit juice were offered to the guests. One fourth of the guests drank cola, one third drank squash, two fifths drank fruit juice and 3 people did not drink anything. How many guests were there in the party?
Click here to see answer by richwmiller(17219)

Question 613322: I'm stuck on the following question: Last month Darlene earned $32 per day and Lisa earned $36 per day. Together they earned a total of $1180. How much did each earn if Darlene worked 5 more days than Lisa?
Click here to see answer by ewatrrr(24785)

Question 613662: how do i solve 2x > -30?
Click here to see answer by radh(108)

Question 613673: The solution of the system { 2x + y = 13, 5x - 2y = 19 } is (5, 3). How are the graphs of the 2 equations related?
Click here to see answer by solver91311(24713)

Question 613728: The question is "Find the slope of the line through each pair of points" (2,-4) & (-3,-4) I need help on figuring it out.
Click here to see answer by jim_thompson5910(35256)

Question 613729: "Find the slope of each line"
y= 4/3x -2
what are the steps to solve the solution?
Click here to see answer by jim_thompson5910(35256)

Question 613769: find the intercepts for the equation
3x+y=-7
x-intercept:
y-intercept:
Click here to see answer by jim_thompson5910(35256)

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