# Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

Algebra ->  Algebra  -> Linear-equations -> Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!      Log On

 Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations! Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

 Algebra: Linear Equations, Graphs, Slope Solvers Lessons Answers archive Quiz In Depth

 Question 174483: you can find the perimeter of rectangle if you subtract the width from the length, add 7 inches, and multiply the result by 4. c.Solve the equation in part(b)for the variable l. Click here to see answer by rapaljer(4667)

 Question 174508: Please help: 1. Solve for X and Y in the following problems. Make sure you show all your work. a. X + Y=6 , 2X + Y = 8 b. 7X + 3Y = 14 , 5X + 9Y = 10 c. 4X + Y = 16 , 2X + 3Y = 24 d. 12X + Y = 25 , 8X - 2Y = 14 for "a" I have x=3, y=2...I just did it in my head but I'm having trouble with what formula to use and how to arrive at the answer step by step Click here to see answer by checkley77(12569)
 Question 174508: Please help: 1. Solve for X and Y in the following problems. Make sure you show all your work. a. X + Y=6 , 2X + Y = 8 b. 7X + 3Y = 14 , 5X + 9Y = 10 c. 4X + Y = 16 , 2X + 3Y = 24 d. 12X + Y = 25 , 8X - 2Y = 14 for "a" I have x=3, y=2...I just did it in my head but I'm having trouble with what formula to use and how to arrive at the answer step by step Click here to see answer by solver91311(17077)

 Question 174510: 3. Solve for X, Y, and Z in the following systems of three equations: a. X + 2Y + Z = 6 X + Y = 4 3X + Y + Z = 8 b. 10X + Y + Z = 12 8X + 2Y +Z = 11 20X - 10Y - 2Z = 8 c. 22X + 5Y + 7Z = 12 10X + 3Y + 2Z = 5 9X + 2Y + 12Z = 14 Click here to see answer by checkley77(12569)

 Question 174523: 2. Suppose Bob owns 2,000 shares of Company X and 10,000 shares of Company Y. The total value of Bob's holdings of these two companies is \$340,000. Suppose Frank owns 8,000 shares of Company X and 6,000 shares of Company Y. The total value of Franks holdings of these two companies is \$340,000. a. Write equations for Bob and Frank's holdings. Use the variables X and Y to represent the values of shares of Company X and Company Y. b. Solve for the value of a share of Company X and Company Y. Click here to see answer by Mathtut(3670)

 Question 174511: I'm trying to create a system of linear equations using my running habbits. I run 2 miles on monday, 3 miles on wensday, and 4 miles on friday. I would like to use the variables x,y,z. I came up with M=2M+3W+4F, but it's like a function instead of a system of linear equations like I'm trying to do..I'm stuck, please help:) Click here to see answer by josmiceli(9817)

 Question 174586: Find the Equation for the line with given properties: Parallel to the lines 5x+2y=10; containing the point (4,-4) Perpendicular to the line x-6y=6; containing (4,4) Perpendicular to the line 4x-7y=-56; containing the point (-7,-4) Perpendicular to the line -5x+6y=4; y - intercept =3 Perpendicular to the line 6x-3y=8; containing the point (0,8) Find the midpoint of the line segment joining the points P1 and P2: P1=(y,7); P2= (0,2) I could really use the help for these problems....Thank you...I am stuck Click here to see answer by stanbon(57967)

 Question 173012: How many solutions does 11x + 7y = 292 have if x and y are positive integers? Click here to see answer by edjones(7569)

 Question 174685: Could you please assist me with the following problem?I have to solve the system by graphing, which is one of the few equations I do not understand. y=2x-5 y+3 over 4x-6=0 Click here to see answer by stanbon(57967)

 Question 174694: An elevator can safely hold no more than 2000 pounds. An elevator operator must take 55-pound boxes to a storage area. If he weighs 165 pounds, how many boxes can he safely move at one time? Click here to see answer by jim_thompson5910(28715)

 Question 174703: Find the equation, in slop-intercept form; of the line that passes though the points (5,2) and (-7,3). write the equation in slop-intercept form. Could someone help me with this???? Thank-you so much!! Click here to see answer by Mathtut(3670)
 Question 174703: Find the equation, in slop-intercept form; of the line that passes though the points (5,2) and (-7,3). write the equation in slop-intercept form. Could someone help me with this???? Thank-you so much!! Click here to see answer by actuary(112)
 Question 174703: Find the equation, in slop-intercept form; of the line that passes though the points (5,2) and (-7,3). write the equation in slop-intercept form. Could someone help me with this???? Thank-you so much!! Click here to see answer by Alan3354(31528)

 Question 174772: Find an equation of the line that has a y intercept of -2 and is perpendicular to the graph of 3x + 6y=2 Click here to see answer by Alan3354(31528)

 Question 174842: The function f(x)=25x+400 represents Jason's total savings after x weeks. How much has he saved after 8 weeks? Click here to see answer by jim_thompson5910(28715)

 Question 174893: fifteen years by now ravi's age will be four tjmes his present age .what is ravi's present age? Click here to see answer by jojo14344(1512)

 Question 174908: find the distance between each pair of points d. (1,2) and (-3,-1) Click here to see answer by actuary(112)

 Question 174906: Your science test is worth 100 points and contains 38 questions.there are two-point and five point questions on the test.How many of each type of question are on the test? Click here to see answer by actuary(112)

 Question 174901: How can you tell if a point is on a graph? Click here to see answer by actuary(112)

 Question 174900: graph the equation y+2x=0 and x+2y=0. where do these graphs intersect? Click here to see answer by actuary(112)

 Question 174916: find the value of h such that the point satisfies the equation y2=x+4. f. (h,-2) Click here to see answer by josmiceli(9817)
 Question 174916: find the value of h such that the point satisfies the equation y2=x+4. f. (h,-2) Click here to see answer by nerdybill(7008)

 Question 174902: use the graphs of the equation y=x and y=100-x. These graphs intersect at one point. Explain why the point is ot the intersection of the two graphs. a.(100,25) Click here to see answer by Alan3354(31528)

 Question 174915: find the value of h such that the point satisfies the equation y2=x+4. e. (h,-1) Click here to see answer by Alan3354(31528)

 Question 174905: use the graphs of the equation y=x and y=100-x. These graphs intersect at one point. Explain why the point is not the intersection of the two graphs. c.(1000,1000) Click here to see answer by josmiceli(9817)

 Question 174907: on a coordinate plane draw a verticle line that passes through (5,3) Click here to see answer by checkley75(3666)

 Question 174928: Is 2x+3y+7=3 a linear equation? If it is how do I write it in standard form? Click here to see answer by josmiceli(9817)

 Question 174935: Assume that y varies inversely as x, and y=18 when x=3. Find the constant of variation. Click here to see answer by stanbon(57967)

 Question 174933: Assume that y varies directly as x. Find y when x=54 if y=1/4 when x=3/2. Click here to see answer by stanbon(57967)

 Question 174913: find the value of h such that the point satisfies the equation y2=x+4. c. (h,2) Click here to see answer by Mathtut(3670)

 Question 174930: A teacher wises to schedule a quiz or exam during part of a two-hour class. The equation L+E=120 can be used to find the available lecture time "L" given that "E" minutes are planned for the quiz or exam. Determine the ordered pairs that satisfy the equation if the domain is {20,30,45,60}. Click here to see answer by Mathtut(3670)

 Question 174912: find the value of h such that the point satisfies the equation . b. (h,1) Click here to see answer by mangopeeler07(462)

 Question 174911: find the value of h such that the point satisfies the equation y2=x+4. a.(h,0) Click here to see answer by Mathtut(3670)

 Question 175077: Find the slope of the line that passes through the points (-3, -5) and (-5, 1). Click here to see answer by Alan3354(31528)

 Question 175085: The profits made by Happenin'Hats depend on the number of hats they sell. If the company's weekly expenses are \$2250 and they charge \$45 per hat,their profits "p" can be calculated by the equation: p=45n-2250,where "n" is the number of hats sold. Write this relation in functional notation. Click here to see answer by stanbon(57967)

 Question 175088: Find the slope of the line at passes through (3,6) and (1,-4). Click here to see answer by stanbon(57967)

 Question 175101: Write the point-slope form of the line that passes through (3,-3) and (5,1). Click here to see answer by josmiceli(9817)

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, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445