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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 156577: The perimeter of a rectangular field is 294 yards. If the length of the field sis 93 yards, what is the width? I came up with 54 yards, but could someone check over my work, thanks:)
Click here to see answer by checkley77(12844)

Question 156574: Can someone help me figure this out? thanks
Graph a line with 1/3 passing through the point (-2,-4)
Click here to see answer by Fombitz(32388)

Question 156579: Give ordered pair (m,n) of numbers that satisfy the equation
4m-n=9
how do I figure this out...thanks for your help!
Click here to see answer by Fombitz(32388)

Question 156579: Give ordered pair (m,n) of numbers that satisfy the equation
4m-n=9
how do I figure this out...thanks for your help!
Click here to see answer by Electrified_Levi(103)

Question 156580: how do you solve the inequality problem for t?
-8/5t-3
Thanks
Click here to see answer by checkley77(12844)

Question 156581: how do you solve the inequality problem for t? the problem is:
-8/5t-3
Thanks
Click here to see answer by Fombitz(32388)

Question 156578: The length of a rectangle is twice it's width. If the perimeter of the rectangle is 48 cm, find it's area. I came up with 24 cm. could some review and let me know if I did this right..thanks upfront..
Click here to see answer by gonzo(654)

Question 156572: Can someone help me figure this problem out? thanks
A= 1/2h (a+b)
Solve for a

Click here to see answer by Fombitz(32388)

Question 156576: A washer and a dryer cost $601 combined. The washer costs $49 less than the dryer. What is the cost of the dryer?

I came up with $276, but I don't know if it is right..please help thanks
Click here to see answer by Fombitz(32388)

Question 156571: For his long distance phone service, Mike pays $3 monthly fee plus .11 cents per minute. Last month Mike's long distance bill was $12.13, for how many minutes was Mike billed?
I got 83 minutes, but could someone please check...thnaks
Click here to see answer by Fombitz(32388)

Question 156575: These are two problems, that I do not get!
Your suppose to graph a line for both of them.
3x+2y=-6
and y=-3x-1 can you help me figure these out..thanks

Click here to see answer by checkley77(12844)

Question 156590: Can someone show me how this is set up and done...thanks
Suppose that a household's monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, HCF).
the function gives a line with a slope of 1.35
If the monthly bill for 23 HCF is $26.67, what is the monthly bill for 29 HCF?

Click here to see answer by stanbon(75887)

Question 156598: Please help me solve and why the answer is not a negative.
If y=square root of 0 + 2.
Click here to see answer by atique.ah(27)

Question 156481: Michael Phelps was paid 2.5 million dollars by Speedo. Stores opened on monday at 8:00am and closed at 9:00pm each day. The stores will sell $66,500 per hour range prices from $180 to $400. After how many hours of sales will speedo begin to profit after paying m. phelps his endorement of 2.5 million and on what day and at what time will this occur. The linear equations of both lines of sales vs time. round to nearest 5 min.
Click here to see answer by josmiceli(19441)

Question 156607: Explain why the line x = 4 is a
vertical line.
Click here to see answer by Alan3354(69443)

Question 156607: Explain why the line x = 4 is a
vertical line.
Click here to see answer by Edwin McCravy(20055)

Question 156607: Explain why the line x = 4 is a
vertical line.
Click here to see answer by gonzo(654)

Question 156551: The table lists data regarding the average salaries of several professional athletes in the years 1991 and 2001.
a.) Use the data points to find a linear function that fits the data.
b.) Use the function to predict the average salary in 2005 and 2010.
Year Average Salary
1991------------266,000
2001------------1,410,000
A linear function that fits the data is S(x)=
(Let x= number of years since 1990, and let S= the average salary x years from 1990.)
Click here to see answer by gonzo(654)

Question 156620: Point z(-3,-2)is translated using the following mapping (x,y) -> (x+1,y+5) What are the coordinate of the image of z ?
Click here to see answer by oscargut(2103)

Question 156671: .The sides (other than hypotenuse) of a right triangle are in the ratio 3:4. A rectangle is described on its hypotenuse, the hypotenuse being the longer side of the rectangle. The breadth of the rectangle is 4/5 of its length. Find the shortest sides of the right triangle, if the perimeter of the rectangle is 180 cm.
Click here to see answer by gonzo(654)

Question 156670: how to find the length of a line between two points
Click here to see answer by nerdybill(7384)

Question 156726: Im having trouble with one question on my homework, i've tried different methods and I am not getting the right answer. The question is "A small plane flying into the wind takes 3h20mins to complete a flight of 960km. Flying with the wind, the same plane takes 2h30mins to make the trip. What is the speed of the plane? What is the speed of the wind?
I know i have to make 2 equations and use the elmination method to solve for the speed of the wind and plane, but I dont know how to express the time since theres hours and minutes. I've tried using fractions and im still not getting the right answer, and i've tried converting the 3hr20 or 2hr30min into minutes. So far the equation i have is
"Let p stand for the speed of the plane"
"Let w stand for the speed of the wind"
960= (p-w) [time it took, but i dont know how to express it]
960=(p+w) [time it took, but i dont know how to express it]
please help me with this question as soon as possible. Thank you so much =)
Click here to see answer by nerdybill(7384)

Question 156883: 2y+3=0
Click here to see answer by checkley77(12844)

Question 156957: find the equation of the line through the points (-2,4) parallel to the line
2x+7y=9
i tried solving for "y" but was not really sure if i was doing it right
or what to do after
-a/b=-2/7

Click here to see answer by jim_thompson5910(35256)

Question 156984: 9x - 3y = 20
Click here to see answer by jim_thompson5910(35256)

Question 157013: Hello, Please Help
I need some help how would I find an equation with the Point of intersection (4,3)on a graph?
Please help me.
Thank you for your help.
Mark
Click here to see answer by gonzo(654)

Question 157030: y=8x+12
Click here to see answer by checkley77(12844)

Question 157176: hi i am having a problem solving this equation, just need an assistance in solving this equation. x + 5/4=3/4 x
Click here to see answer by josmiceli(19441)

Question 157146: Find the slope and the y-intercept
f(x) = -8x -4
Click here to see answer by nerdybill(7384)

Question 157206: 4x-5=4x+10
Click here to see answer by checkley77(12844)

Question 157271: how to solve 4+X+7=48
Click here to see answer by jim_thompson5910(35256)

Question 157284: Please help me with this problem.
The astronomy club at King Middle School is planning a field trip to the science center to see a new 3-D science film. Renting a bus for the trip will cost $125. Admission to the film is $2.50 per person.
a) Write an equation to show the relationship between the number of students who go on the trip, n, and the cost of the trip, c.
My answer is c = 2.50n + 125. Is this right?
d) What do the slope and the y-intercept of the graph tell you about the cost and the number of students? I have no idea, please help.
Thank you so much for your help.
Click here to see answer by jim_thompson5910(35256)

Question 157225: slope of BC = 4-2 divided by (over) -2-4
i don't understand?
HELP PLEASE!
Click here to see answer by Fombitz(32388)

Question 157416: Is 1/4 the root of the equation 4/y + 6/2y = 28?
Click here to see answer by gonzo(654)

Question 157470: The line parallel to 4x-2y=5 as 0 x-intercept. Find the equation of this line.
Click here to see answer by Fombitz(32388)

Question 157453: how to graph x=-4
Click here to see answer by Alan3354(69443)

Question 157652: Can somebody help me solve this equation.
Click here to see answer by edjones(8007)

Question 157640: write an equation in slope-intercept form for the line that satisfies the following condition. slope 1/3and passes through (3,9)
Click here to see answer by Electrified_Levi(103)

Question 157680: Show that the points D(-1,-2),E(2,1) and F(-3,6) are the vertices of a right triangle.
Click here to see answer by Fombitz(32388)

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, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240, 30241..30285, 30286..30330, 30331..30375, 30376..30420, 30421..30465, 30466..30510, 30511..30555, 30556..30600, 30601..30645, 30646..30690, 30691..30735, 30736..30780, 30781..30825, 30826..30870, 30871..30915, 30916..30960, 30961..31005, 31006..31050, 31051..31095, 31096..31140, 31141..31185, 31186..31230, 31231..31275, 31276..31320, 31321..31365, 31366..31410, 31411..31455, 31456..31500, 31501..31545, 31546..31590, 31591..31635, 31636..31680, 31681..31725, 31726..31770, 31771..31815, 31816..31860, 31861..31905, 31906..31950, 31951..31995, 31996..32040, 32041..32085, 32086..32130, 32131..32175, 32176..32220, 32221..32265, 32266..32310, 32311..32355, 32356..32400, 32401..32445, 32446..32490, 32491..32535, 32536..32580, 32581..32625, 32626..32670, 32671..32715, 32716..32760, 32761..32805, 32806..32850, 32851..32895, 32896..32940, 32941..32985, 32986..33030, 33031..33075, 33076..33120, 33121..33165, 33166..33210, 33211..33255, 33256..33300, 33301..33345, 33346..33390, 33391..33435, 33436..33480, 33481..33525, 33526..33570, 33571..33615, 33616..33660, 33661..33705, 33706..33750, 33751..33795, 33796..33840, 33841..33885, 33886..33930, 33931..33975, 33976..34020, 34021..34065, 34066..34110, 34111..34155, 34156..34200, 34201..34245, 34246..34290, 34291..34335, 34336..34380, 34381..34425, 34426..34470, 34471..34515, 34516..34560, 34561..34605, 34606..34650, 34651..34695, 34696..34740, 34741..34785, 34786..34830, 34831..34875, 34876..34920, 34921..34965, 34966..35010, 35011..35055, 35056..35100, 35101..35145, 35146..35190, 35191..35235, 35236..35280, 35281..35325, 35326..35370, 35371..35415, 35416..35460, 35461..35505, 35506..35550, 35551..35595, 35596..35640, 35641..35685, 35686..35730, 35731..35775, 35776..35820, 35821..35865, 35866..35910, 35911..35955, 35956..36000, 36001..36045