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

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Question 881710: How do I tell exponents and logarithms apart, using a sequence?

Click here to see answer by josgarithmetic(39617)

Question 881725: If y=a+bx and y=12-5x have infinite solutions, then what does 'a' equal?
Click here to see answer by richwmiller(17219)

Question 881649: Describe the characteristics of a normal distribution
Click here to see answer by jim_thompson5910(35256)

Question 881737: Solve the equation using any method. Check each solution.
5/x+3 - 3/x-2 = 5/3x-6
Click here to see answer by ewatrrr(24785)

Question 881648: Find the mean, median, mode, range, and standard deviation of 28.4, 9.1,3.4,27.6,59.8,32.1,47.6,29.8
Click here to see answer by JulietG(1812)

Question 881639: Find the equation in the form of y=mx+b through (-1,4) with undefined slope.
Click here to see answer by josgarithmetic(39617)

Question 881837: Hi,
I am doing a question in a assignment where I have to transform the equation to make 'y' the subject with a coefficient of 1. My equation is 29x+4y=11.
I hope this all makes sense, it would be very helpful and I would be very appreciate if you could please solve this problem for me with the working showing so I will know how to do it next time I get a question like this
Click here to see answer by ewatrrr(24785)

Question 881654: Graph 2y+3x>7
Click here to see answer by Fombitz(32388)

Question 881968: A line contains the points (�2, �6) and (4, 1). Using point-slope form, write the equation of the line that is perpendicular to the given line and that passes through the point (4, 1).
Click here to see answer by josgarithmetic(39617)

Question 882641: Can you use either elimination or substitution (both would be nice but not necessary!!!)Thank you!
5x-2y=-11
3x+2y=-9
When I tried for elimination I got:
5x-2y=-11
+ 3x+2y=-9
____________
8x=-20
x=-5/2
Then I substituted -5/2 for 'x' in the first equation;
5(-5/2)+2y=-11
-25/2+2y=-11
2y=3/2
y=3/4
but when I tried with substitution I got:
2y=11+5x
y=11/2+5/2
y=16
It would be lovely if you could help me with this!!
Thank you again and best of luck!!!
-Kristie
Click here to see answer by josgarithmetic(39617)

Question 882598: John makes monthly deposits which pay 3% interest compounded monthly. What size deposit must he make in order to have $10,000 in 3 years?
Click here to see answer by josgarithmetic(39617)

Question 882593: Find the mean, median, mode, range, and standard deviation of 28.4,9.1,3.4,27.6,59.8,32.1,47.6,29.8
Click here to see answer by Fombitz(32388)

Question 882592: graph 3y+2x=3
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Question 882831: Graph y greater than or equal to 2x plus 3
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Question 882834: Graph on one graph:
x<2
y>2
x+y>3
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Question 882826: Graph 3y+2x=3
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Question 882806: Solve by any method you choose:echlon, jordan gauss method
x-y+3z=13
4x+y+2z=17
3x+2y+2z=1
Click here to see answer by Fombitz(32388)

Question 883171: Solve the system of equations using the elimination method. Enter the answer as an ordered pair.
x - 2y = 12
4x + 2y = 8
Click here to see answer by stanbon(75887)

Question 883171: Solve the system of equations using the elimination method. Enter the answer as an ordered pair.
x - 2y = 12
4x + 2y = 8
Click here to see answer by algebrahouse.com(1659)

Question 883421: The vertical line that passes through (-7,4)
Click here to see answer by Fombitz(32388)

Question 883425: Y-3=3(x+1) in slope form
Click here to see answer by Fombitz(32388)

Question 883432: Y-3=3(x+1) what point does this line pass through which is basic of the equation
Click here to see answer by Fombitz(32388)

Question 883438: What is the X - intercept of the perpendicular line of(5,1)
Click here to see answer by josmiceli(19441)

Question 883434: What is the X - intercept of the perpendicular line of y-3=3(x+1)
Click here to see answer by josmiceli(19441)

Question 883423: The horizontal line that passes through ( - 7,4 )
Click here to see answer by josgarithmetic(39617)

Question 883674: What are the solutions to this system of equations?
x^2 + y^2 = 5
y = 2x
Click here to see answer by rothauserc(4718)

Question 883675: For the system x + y = 2 and y = - x1/4^2 + 3, Could you solve the system? Thanks.
Click here to see answer by Alan3354(69443)

Question 883676: 1. Rhonda is considering two options to repave her driveway. The first option is asphalt, which costs $2,200.00 to install, but requires her to apply sealant every year at the rate of $115.00 per treatment. The other option is concrete, which costs $3550.00 and requires no annual maintenance.
a. Is either or both of these relationships linear? Why?
Click here to see answer by JulietG(1812)

Question 883843: Match the graph with the correct equation.
mc001-1.jpg
Click here to see answer by Alan3354(69443)

Question 883860: −11x+4= what do I do to make this a no solution ?
Click here to see answer by Alan3354(69443)

Question 884093: Linear & Quadratic Functions
The zeros of a function f are the values of x for which f(x) = 0. In the problems, find (a) f(0); (b) the zeros of f
f(x) = 3x - 9
f(x) = 5x - 8
f(x) = x^2 - 8x + 15
f(x) = x^2 - 9x + 20
Click here to see answer by Fombitz(32388)

Question 884239: use a computer software or graphing utility to solve the system of linear equation.
x₁+0.5x₂+0.33x₃+0.25x₄=1.1
0.5x₁+0.33x₂+0.25x₃+0.21x₄=1.2
0.33x₁+0.25x₂+0.2x₃+0.17x₄=1.3
0.25x₁+0.2x₂+0.17x₃+0.14x₄=1.4
Click here to see answer by Fombitz(32388)

Question 884331: Solve the system of equations using the elimination method. Enter the answer as an ordered pair.
2x - 3y = 4
5x + 2y = -9
Click here to see answer by lwsshak3(11628)

Question 884376: find the equation of the line with slope 5/7 and passing through (1 -6)
Click here to see answer by lwsshak3(11628)

Question 884475: In the picture you can see lines labelled 1 through 4.
http://tinypic.com/view.php?pic=sl4azc&s=8#.U6xU9pRdXpc
1.Which system has no solution?(A)lines 1 and 2. (B)lines 1 and 3. (C)lines 1 and 4 (D)lines 2 and 3

2.Which system has infinite solutions?(A)lines 1 and 2 (B)lines 1 and 3 (C)lines 1 and 4 (D)lines 2 and 4

3.Which system has exactly one solution? (A)lines 1 and 2 (B)lines 1 and 3 (C)lines 2 and 4 (D)all of these.

Click here to see answer by Fombitz(32388)

Question 884703: Consider the following system of equations
y=2x-5
y-2x=5
What can you conclude about the system of equations.
I have already concluded that y=2x-5, y=2x+5. I'm not clear as to if the equation is dependent, independent, or inconsistent. Please help me clarify.
Click here to see answer by ewatrrr(24785)

Question 884711: Identify the solution(s) of the system of equations, if any
-3x-4y=2
8y=-6x-4

Click here to see answer by ewatrrr(24785)

Question 884706: Identify the solution(s) of the system of equations, if any
-4x-6y=16
6y=-4x-16
Click here to see answer by ewatrrr(24785)

Question 884708: Identify the solution(s) of the system of equations, if any
x+3y=7
4x-9y=0
Click here to see answer by ewatrrr(24785)

Question 884713: Please help me identify the solution or solutions of the system of equations, if any
7x+2y=4
6x-2y=6
Thank you
Click here to see answer by ewatrrr(24785)

Question 884710: Identify the solution(s) of the system of equations, if any
6x+4y=0
y=3-3x
Click here to see answer by ewatrrr(24785)

Question 884791: Hello everyone, im stuck on this problem. Your help is greatly appreciated, im lost and have no idea on how to solve it, thanks in advance!

Construct a system of two linear equations that has a solution of (-2,6)
Click here to see answer by josgarithmetic(39617)

Question 884850: x=136*y+ 36
and
x=17*y + z find x,y,z

Click here to see answer by Alan3354(69443)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515