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

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Question 793168: Question: Jacob has $6.00 in dimes and quarters. He has ten more quarters than dimes. How many dimes and quarters does he have?


I don't know how to set up these kinds of problems... I tried this, but I don't really know what to do after this---- $6.00= (10+q)dx ----- It's probably wrong but can you please explain how you set it up and why?? thank you SOOO much!!!!

Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 793398: how do i solve this?
(y/2)+(y/4)=(9/8)

Click here to see answer by Alan3354(69443) About Me 

Question 793582: 1)graph the line that passes through (5,8) and it is perpendicular to the y-axis

Click here to see answer by josmiceli(19441) About Me 

Question 793762: A line contains the points (8,y) and (11,7) and has a slope of 6.find the value of y.
Click here to see answer by mananth(16946) About Me 

Question 793860: Find an equation of a line passing through the points (8,10) and (15,8)
Please help I've tried to solve it and I can't find the right answer.

Click here to see answer by stanbon(75887) About Me 

Question 793967: 5n-2=n+18

Click here to see answer by jim_thompson5910(35256) About Me 

Question 793744: How do I determine 'a' and 'b' such that the line with equation ax+by=4 passes through the point (5, 2) and has a slope of 2/3.
Click here to see answer by KMST(5328) About Me 

Question 794430: graph the equation using the point and the slope. y-6=-3(x+8)
Click here to see answer by stanbon(75887) About Me 

Question 696476: What is the solution set for the system of inequalities 3X2-4X-5 < Y and 4X+3Y< 2?
A. -1 < X < 2

B. -1 < X < 17/9

C. -0.79 < X < 2.12

D. -1 < X < 0.5


Click here to see answer by SkinnyPrincess(1) About Me 

Question 794610: Is 5/9x-4x=9 a linear equation?
Click here to see answer by Student789(6) About Me 

Question 794750: Exactly what is the vertical line test?
Click here to see answer by tommyt3rd(5050) About Me 

Question 794728: A water tank can be filled by a gasoline fueled water pump in 28 minutes and by an electric pump in 21 minutes. How long would it take to fill the tank if both pumps were used?
Click here to see answer by Cromlix(4381) About Me 

Question 794914: Show that the points A(5,7)...B(3,9)...C(6,8).... are the vertices of a right triangle. Use distance formula What point is the right angle?
Click here to see answer by rfer(16322) About Me 

Question 795131: I am having issues solving this linear equation with a fraction... Please help with step by step... X=-2
Y=5/2x-5
Y=5/2(-2)-5
Not too sure what the next step is :/

Click here to see answer by waynest(281) About Me 

Question 795184: Find k if 3x+ky=1 is perpendicular to y+2x=-5
Click here to see answer by lwsshak3(11628) About Me 

Question 795462: An equation of a line is y=5/3x+c. Determine the value of c when the line passes through the point F(4,-6). Describe your strategy.
Click here to see answer by josgarithmetic(39617) About Me 

Question 795435: How do I solve 3x-5y=9;x=-1,0,1
Click here to see answer by Alan3354(69443) About Me 

Question 795459: if you have an x intercept=-1 and a y intercept=-2 find the slope and the y intercept
Click here to see answer by josgarithmetic(39617) About Me 

Question 795426: Solve the linear equation 2x+3y=1, 5x+7y=3
Click here to see answer by waynest(281) About Me 

Question 795543: Graph the linear system and determine how many solutions it has: no solution, exactly one solution or infinitely many solutions. SHOW GRAPH.
x + 2y = -2
-3x - 6y = 6

Click here to see answer by rothauserc(4718) About Me 

Question 795542: Are y=9x-14 and y=-1/10x-29 perpendicular

Click here to see answer by Cromlix(4381) About Me 

Question 795704: The figure shows a triangle ABC with A (1,1), and B (-1,4).
The gradients of AB, AC and BC are -3m, 3m and m respectively.
a) Find the value of m
b) Find the coordinates of C
c) Show that AC = 2AB
I have so far attempted question a), in which I got the correct answer:
m = (y2 - y1)/(x2 - x1)
m = 4-1/-1-1 = 3/-2 x 1/-3
m = 1/2
I have attempted question b) but i'm not really sure how to proceed. Let me show what I've tried:
m(BC) = 1/2
y - y1 = m (x - x1)
y - 4 = 1/2 (x+1)
y = 1/2x + 9/2
I'm not sure what to do next.
Please help me! Thank you.

Click here to see answer by Alan3354(69443) About Me 

Question 795770: draw a graph of the line 3x+y=6 and also find the coordinates of the points where meets x axis
Click here to see answer by rothauserc(4718) About Me 

Question 795869: i had this question on my math test, and i cant find out what did wrong, the question was " find the x-intercept and the y-intercept of the graph of the of the equation 9/8x+8y+18" my work i did was 9-8/8-1= 1/7

Click here to see answer by Alan3354(69443) About Me 

Question 796010: The graph of x + 2y = -5 contains which point ?
A) (0,0)
B) (2,-1)
C) (-2,-1)
D) (-1,-2)

Click here to see answer by fcabanski(1391) About Me 

Question 796206: A line with slope 2/3 that passes through the point (6,2) what is the equation for this problem? What is an easy trick to do these kind of problems?
Click here to see answer by josgarithmetic(39617) About Me 

Question 796399: what is the answer when you have to solve for W when the problem is 2w-y=7w-2
Click here to see answer by solver91311(24713) About Me 
Question 796399: what is the answer when you have to solve for W when the problem is 2w-y=7w-2
Click here to see answer by tommyt3rd(5050) About Me 

Question 796460: Find the x-intercept and y-intercept of the linear equation below.
3x - 6y = 12
x-intercept_____________
y-intercept_____________

Click here to see answer by Alan3354(69443) About Me 

Question 796500: y=4 How would you graph that on a slope if theres no X intercept?
Click here to see answer by Alan3354(69443) About Me 

Question 796748: If G(x)= x^2-4x+1, and f(x)=-2x+5 find each value.
f(1/2)=?
f(x+2)=?
After solving do you mind telling the steps on how to do these kind of problems?
Please specify why you have to that and that if knowing how to solve.

Click here to see answer by luke94(89) About Me 

Question 796865: Beth has $2.77 in her coin jar - all in pennies (x), nickels (y) and dimes (z). If she has 53 coins in all and four more nickels than dimes, find how many of each type of coin she has. Setup three equations in x, y, and z and solve the equations to find x(pennies), y(nickels), and z(dimes). Note only one equation has y and z only. I do not even know where to begin, once I find the equation I know how to solve them..I just cant find the equaitons
Click here to see answer by solver91311(24713) About Me 
Question 796865: Beth has $2.77 in her coin jar - all in pennies (x), nickels (y) and dimes (z). If she has 53 coins in all and four more nickels than dimes, find how many of each type of coin she has. Setup three equations in x, y, and z and solve the equations to find x(pennies), y(nickels), and z(dimes). Note only one equation has y and z only. I do not even know where to begin, once I find the equation I know how to solve them..I just cant find the equaitons
Click here to see answer by stanbon(75887) About Me 

Question 796878: The problem reads - create a table to organize a set of points that follow the rule y=-3
Is there a formula I should use?

Click here to see answer by solver91311(24713) About Me 

Question 796880: how do I do y-30=31/16(x-25) I need someone to explain how to do it to me

Click here to see answer by solver91311(24713) About Me 

Question 797045: How so I graph 15x+60=30 using slope and y-intercept
Click here to see answer by Alan3354(69443) About Me 

Question 797005: I have two Questions. My first one is, How do you algebraically figure out if vales of x and y can be the same?
For example, In this equation 12= 2x + 3y I can figure out through guess and check that the number 2.4 can be used for x and y at the same time.
Now for my next question.
Say you have something like this:
24= 4x + 8y
How do I determine algebraically what values of y and x will make 24 equal to 0?
Thanks so much!

Click here to see answer by KMST(5328) About Me 

Question 797365: this is my problem.... "2x − 8y + 15 = 0 write given equation in slope intercept form." I'm very rusty on math, im in college and have taken a few semesters off of math all together. i'm currently in college algebra. I don't know what form this is in because its been so long since ive done math... but i tried making it y=15+2x but it's telling me its wrong... i'm just really stuck and not sure how to even begin on this. and i know its probably really simple, but im horrible at math to begin with.
Click here to see answer by solver91311(24713) About Me 

Question 797424: give the slope of each line and then determine whether the two lines are parallel, perpendicular or neither parallel or perpendicular.
2x+3y=6
5x+8y=0

Click here to see answer by Alan3354(69443) About Me 

Question 797486: Find the slope and y-intercept of the line with equation
7x − 8y = 64
i am having so much trouble with this ... please help

Click here to see answer by Alan3354(69443) About Me 

Question 797445: Find all vertices. Find Minimum or Maximum value.
{x+y<=6
{2x+y<=10
{x>=o,y>=0
{Maximum: P=4x+y

Click here to see answer by KMST(5328) About Me 

Question 797517: How do you write the correct equation in slope intercept form? A line perpendicular to y=1/2x-1, x-intercept at 4. I would understand if it said y intercept at 4. And I know that the slope is the opposite reciprocal. Would this be right? Y=-2/1x then moved over to 4 on the x axis? How do you write that?
Click here to see answer by jerryguo41(197) About Me 

Question 797534: How do I simplify point slope form into slope intercept form? (Y-4)=5/6(x-12)
Click here to see answer by rfer(16322) About Me 

Question 797708: Would you prefer that your salary be modeled linearly or exponentially? Give reason and explain your answer.
Click here to see answer by solver91311(24713) About Me 

Question 797759: what is the slution set of 5/4x+1/8x=11/8+x
Click here to see answer by jim_thompson5910(35256) About Me 

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, 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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