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

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Question 177156: Find both the x-intercept and the y-intercept of the line given by the equation
6x-7y-11=0
Click here to see answer by jim_thompson5910(35256)

Question 176907: The farest I have got to this question is 2a= 8 / a+b=2
a=4 on the first linear equations but I don't know where to go from here.
Click here to see answer by Earlsdon(6294)

Question 177154: Graph the line with slope -1/4 passing through the point (-3,-1).
Click here to see answer by jim_thompson5910(35256)

Question 177180: The surface area S of a right prism is given by S=2B+Ph, where B is the area of the base, P is the perimeter of the base, and h is the height of the prism.
Solve for h.
Click here to see answer by stanbon(75887)

Question 177186: Give an ordered pair (x,y) of numbers that satisfy the equation
4x+y=3
Click here to see answer by stanbon(75887)

Question 177185: The length of a rectangle is twice its width. If the perimeter of the rectangle is 30ft, find its area
Click here to see answer by stanbon(75887)

Question 177163: Give an ordered pair (x,y) of numbers that satisfy the equation
4x+y=3
Click here to see answer by Earlsdon(6294)

Question 177177: A total of 285 tickets were sold for the school play. The number of student tickets sold was two times the number of adult tickets sold . How many adult tickets were sold?

Click here to see answer by Earlsdon(6294)

Question 177175: Lena purchased a prepaid phone card for $30. Long distance calls cost 17 cents a minute using this card. Lena used her card only once to make a long distance call. If the remaining credit on her card is $24.05, how many minutes did her call last?

Click here to see answer by Earlsdon(6294)

Question 177176: Al will rent a car for the weekend. He can choose one of two payment plans. The first plan costs $51.98 for two days plus 15 cents per mile. The second plan costs $39.98 for two days plus 20 cents per mile. How many miles does Al need to drive for the two plans to cost the same?

Click here to see answer by Earlsdon(6294)

Question 177159: Write equations for the vertical and the horizontal lines passing through the point (2,-3) in (x,y) coordinates.
vertical line=
horizontal line=
Click here to see answer by Alan3354(69443)

Question 177202: A nonzero constant can be added to, or subtracted from, either side of a linear inequality without changing the solution. This statement is:
a. true
b. false
c. sometimes true
d. none of these
Click here to see answer by stanbon(75887)

Question 177160: Suppose that the monthly cost of a long-distance phone plan (in dollars) is a linear function of the total calling time (in minutes). When graphed, the function gives a line with a slope of 0.09.
The monthly cost for 35 minutes of calls is $15.94. What is the monthly cost for 29 minutes of calls?
Click here to see answer by ankor@dixie-net.com(22740)

Question 177162: The perimeter of a rectangular garden is 308 feet. If the length of the garden is 97 feet, what is its width?

Click here to see answer by Alan3354(69443)

Question 177153: The surface area S of a right prism is given by S=2B+Ph, where B is the area of the base, P is the perimeter of the base, and h is the height of the prism.
Solve for h.
Click here to see answer by Alan3354(69443)

Question 177170: Use the Distributive Property to remove the parentheses from the following expression.
-3(-4w^3+3+5t^2)
Click here to see answer by Alan3354(69443)

Question 177170: Use the Distributive Property to remove the parentheses from the following expression.
-3(-4w^3+3+5t^2)
Click here to see answer by stanbon(75887)

Question 177152: Lena purchased a prepaid phone card for $30. Long distance calls cost 17 cents a minute using this card. Lena used her card only once to make a long distance call. If the remaining credit on her card is $24.05, how many minutes did her call last?
Click here to see answer by Alan3354(69443)

Question 177151: Al will rent a car for the weekend. He can choose one of two payment plans. The first plan costs $51.98 for two days plus 15 cents per mile. The second plan costs $39.98 for two days plus 20 cents per mile. How many miles does Al need to drive for the two plans to cost the same?

Click here to see answer by Alan3354(69443)

Question 177150: A total of 285 tickets were sold for the school play. The number of student tickets sold was two times the number of adult tickets sold . How many adult tickets were sold?

Click here to see answer by Alan3354(69443)

Question 177235: Ziggy�s Famous Yogurt blends regular yogurt that is 3% fat with its no-fat yogurt to obtain lowfat yogurt that is 1% fat. How many pounds of regular
yogurt and how many pounds of no-fat yogurt should be mixed to obtain 60 pounds of low-fat yogurt?
Click here to see answer by Mathtut(3670)

Question 177453: Find both the x intercept and the y intercept of the line given by the equation
x+8y+5=0
Click here to see answer by nerdybill(7384)

Question 177469: -2y=-6x+62
-x=-22-2y
Click here to see answer by jim_thompson5910(35256)

Question 177480: 2x-3y=-3
x+6y=-9
What point makes both equations true?
Click here to see answer by jim_thompson5910(35256)

Question 177561: How do I solve
Solve by addition
2x + y = 3
x - y =3
Click here to see answer by Fombitz(32388)

Question 177561: How do I solve
Solve by addition
2x + y = 3
x - y =3
Click here to see answer by stanbon(75887)

Question 177559: I do not know how to solve this.
Solve by substitution
x+y=10
y=4x
Click here to see answer by Mathtut(3670)

Question 177583: if x + y =12 and xy = 163, find x squared + y squared
Click here to see answer by edjones(8007)

Question 177583: if x + y =12 and xy = 163, find x squared + y squared
Click here to see answer by solver91311(24713)

Question 177626: -4y + 10 = -2 (3y +1)
i don't understand how to do this.
Click here to see answer by Mathtut(3670)

Question 177636: y = 4x + 1
Click here to see answer by Mathtut(3670)

Question 177643: Russ and Janet are running in the Apple Hill Fun Run. Russ runs at 7 mph, Janet runs at 5 mph. If they start at the same time, how long will it be before they are half a mile apart? show me step by step..
Click here to see answer by Edwin McCravy(20056)

Question 177663: Find three consecutive integers such that the sum of the first and twice the second is 17 more than twice the third.
Click here to see answer by jojo14344(1513)

Question 177645: Russ and Janet are running in the Apple Hill Fun Run. Russ runs at 7 mph, Janet runs at 5 mph. If they start at the same time, how long will it be before they are half a mile apart? show me step by step..
Click here to see answer by solver91311(24713)

Question 177648: Joann took 20 miuntes to drive her boat upstream to water-ski at her favorite spot. Coming back later in the day, at the same boat speed, took her 15 minutes. If the current in that part of the river is 5 km per hr, what was her boat speed?
Click here to see answer by gonzo(654)

Question 177644: Russ and Janet are running in the Apple Hill Fun Run. Russ runs at 7 mph, Janet runs at 5 mph. If they start at the same time, how long will it be before they are half a mile apart? show me step by step..
Click here to see answer by MathTherapy(10552)

Question 177838: please show me how to clear this fraction by multiplying by 3
-29one/third they say the answer is -88
Click here to see answer by Mathtut(3670)

Question 177838: please show me how to clear this fraction by multiplying by 3
-29one/third they say the answer is -88
Click here to see answer by edjones(8007)

Question 177838: please show me how to clear this fraction by multiplying by 3
-29one/third they say the answer is -88
Click here to see answer by MathTherapy(10552)

Question 177950: this question is about how to solve equation using substitution
4x-7y=10
y=x-7
what is x and y?
and question 10 ;
2x-y=23
x-9=-1
what is x and y?

Click here to see answer by Mathtut(3670)

Question 177967: Solve each system by substitution. Determine whether the equations are independent, dependent, or inconsistent.
2x-y=4
2x-y=3
Click here to see answer by jim_thompson5910(35256)

Question 177966: Solve each system by substitution. Determine whether the equations are independent, dependent, or inconsistent.
x+3y=2
x+y=1
Click here to see answer by jim_thompson5910(35256)

Question 177963: Solve each system by substitution. Determine whether the equations are independent, dependent, or inconsistent.
y=-3x+19
y=2x-1
Thank for your help!
Click here to see answer by jim_thompson5910(35256)

Question 177971: Solve each system by addition
3x+5y=-11
x-2y=11
Click here to see answer by jim_thompson5910(35256)

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