Questions on Algebra: Equations answered by real tutors!

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Question 151095: which point, (5/2,3) or (3/2,2), is on the graph of 2x-2/3y=5/3?
Click here to see answer by vleith(2983)

Question 151195: the graph of any equation of the form x = a constant yields a/an______________________line.
Click here to see answer by vleith(2983)

Question 151201: is (2, -3) a solution of x squared+2y= -2? tell why of why no.
Click here to see answer by Earlsdon(6294)

Question 151197: the ommutative property of multiplication states that___________=___________.
Click here to see answer by jim_thompson5910(35256)

Question 151206: I just need a refresher.

. Explain how we evaluate an algebraic expression for given values of the variables. How would we evaluate the expression "3x - 4y + 9" when x = 2 and y = 5?

Click here to see answer by jim_thompson5910(35256)

Question 151229: Intermediate Algebra � MAT1001
In a certain triangle the measure of one angle is double the measure of a second angle but is 5 degrees less than the measure of the third angle. If the sum of the measures of the three interior angles of a triangle is always 180 degrees, form an algebraic equation to express the problem, and identify the variables, coefficients, and constants of the algebraic expression.
Click here to see answer by stanbon(75887)

Question 151241: 2/5(x+1)=8/15;(1/6,1/3, 1/2, 2/3)
The language is algebra, Practice and Apply
Click here to see answer by scott8148(6628)

Question 150995: Under what situation would one or more solutions of a rational equation be unacceptable?
Click here to see answer by HyperBrain(694)

Question 151270: How do I evaluate this
Click here to see answer by tramfw89(2)

Question 151220: By performing row of operations on augumented matrix, I am having a hard time trying to determine if these equations are independent, dependent, or inconsistent.
x+y+z=11
x-y+3z=5
2x+2y+2z=15
Click here to see answer by scott8148(6628)

Question 151291: 5/8y - 8 = 2
Click here to see answer by jim_thompson5910(35256)

Question 151281: An antique dealer sold four chairs for a total of �800. The Regency chair went for as much as the Victorian chair and half the Edwardian chair. The Victorian chair went for as much as the Queen Anne minus the cost of the Edwardian. The Edwardian sold for one-third of the price of the Regency, the Queen Anne went for the total raised by the Victorian and the Edwardian. How much was each chair?
Click here to see answer by ankor@dixie-net.com(22740)

Question 151367: what is the difference between algebra and equations???
help me please i have test on Thursday
Click here to see answer by nabla(475)

Question 151340: Hello Everyone I just need a refresher.
List any four situations where variables can be used to replace numbers; convert each situation into an algebraic expression.
Click here to see answer by nabla(475)

Question 151384: I just need a refresher.
The sum of three consecutive even numbers is 144; what are the numbers?
A man buys five DVDs for $66.34, including 7% sales tax. How much did each DVD cost?
Click here to see answer by ankor@dixie-net.com(22740)

Question 151405: 65. Solve the system of equations.
1.5x � 7y = 2
0.625x + 3y = �2.125

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Question 151456: x/4 - y/11 = -9/44
x/6 - y/13 = -1/26
Click here to see answer by stanbon(75887)

Question 151416: x/4 - y/11 = -9/44
x/6 - y/13 = -1/26

Click here to see answer by Alan3354(69443)

Question 151484: please solve and show the work for 5^x=25^4
Thank you
Click here to see answer by jim_thompson5910(35256)

Question 151485: please solve and show your work for me
3/x < 2/x+1
Thanks
Click here to see answer by checkley77(12844)

Question 151625: Solve for x
(x-5)/3 - 3/2 = (4x + 7)/6
Click here to see answer by jim_thompson5910(35256)

Question 151633: Can you please help me?
1. Simplify: 8[a � b(3- 4a)] � 6a[2-a(3-b)]
Click here to see answer by jim_thompson5910(35256)

Question 151644: Solve the equation
11 1
--=4- -
x x
Note- the problem is 11 divided by x =4 minus 1 divided by x
Thanks,
Pat
Click here to see answer by jim_thompson5910(35256)

Question 151649: 1.3x+2=23
2.K/5-1=7
3.3y-8=1
4.m/6+4=10
5.3d=57
6.7x=105
7.4g=40
8.16y=112
(these are all seperate problems)
Click here to see answer by jim_thompson5910(35256)

Question 151650: 2x=14
4y=80
6y=12
9/m=9

(all are different questions)
Click here to see answer by jim_thompson5910(35256)

Question 151657: n/9=63

Click here to see answer by jim_thompson5910(35256)

Question 151661: Can someone please help me im stuck?
9. Sandy has $3.75 in change. She has three more quarters than dimes but twice as many nickels as quarters. Express the given information as an algebraic expression and simplify. [You are not required to solve the problem]

Click here to see answer by mducky2(62)

Question 151745: Solve for x
(x-5)/3 -3/2 =(4x+7)/6
Click here to see answer by jim_thompson5910(35256)

Question 151771: z+3/z+1=z^2+9z+20/z^2-z-2 look for the root
Click here to see answer by orca(409)

Question 151757: please help me solve 4 1/2 Z= 6 THANK YOU NEED IT ASAP
Click here to see answer by orca(409)

Question 151815: -6(v+1)+v
Click here to see answer by jojo14344(1513)

Question 151820: I need solve this...
5√8
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Question 151819: 15t-(t-4)
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Question 151826: A 34% acid solution was mixed with a 66% acid solution to produce 216 liters of a 42% acid solution. How much liters of each solution was mixed?
Click here to see answer by ankor@dixie-net.com(22740)

Question 151841: we are having difficulty working on algrebraic expressions, it has been yrs since I have had to do this, and the teacher didn't give great notes.
one of her problems is 'q more than two hundred fifteen'?

Click here to see answer by checkley77(12844)

Question 151835: 2x-4=x
Click here to see answer by checkley77(12844)

Question 151756: please help me solve x= 2y+2. THANK YOU NEED IT ASAP
Click here to see answer by checkley77(12844)

Question 151866: I can't figure how to factor completely.
216p^3 - 1
Choices are
(6p - 1)(36p^2 + 6p + 1)
(216p - 1)(p^2 + 6p + 1)
(6p + 1(36p^2 - 6p + 1)
(6p - 1)(36p^2 + 1)
Help would be greatly appreciated.
Click here to see answer by stanbon(75887)

Question 151924: y=5-4x
2x-3y=13
substitution method
Click here to see answer by jojo14344(1513)

Question 151935: Please I need help with these 5 problems. Thank you.

1. Write an algebraic expression for the following. Double a number plus 7

6 / 1
- - = (6 over 8 divided by 1 over 4)
8 4

5 - 3
- = (5 - 3 over 8)
8

7 3 - 3 1
- - = ( 7 and 3 over 4 (-minus) 3 and 1 over 2)
4 2

4 x 4
- - = (4 over 11 multiply by 4 over 6)
11 6
Click here to see answer by stanbon(75887)

Question 151957: Solve each formula for the indicated variable.
1. A=1/2bh, for h
2. s=1/2gt squared, for g
3. V=lwh, for w
4. I=prt, for r
Click here to see answer by checkley77(12844)

Question 151996: Lainey is 5 years old than her sister,mary. In 2 years she will be twice as old as her. What is their ages.
Click here to see answer by orca(409)

Question 152015: Can you please help me work out this equation:
2(5x+2)= 10x
Thank you so much.
=)
Click here to see answer by checkley77(12844)

Question 152015: Can you please help me work out this equation:
2(5x+2)= 10x
Thank you so much.
=)
Click here to see answer by ankor@dixie-net.com(22740)

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, 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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, 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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, 36046..36090, 36091..36135, 36136..36180, 36181..36225, 36226..36270, 36271..36315, 36316..36360, 36361..36405, 36406..36450, 36451..36495, 36496..36540, 36541..36585, 36586..36630, 36631..36675, 36676..36720, 36721..36765, 36766..36810, 36811..36855, 36856..36900, 36901..36945, 36946..36990, 36991..37035, 37036..37080, 37081..37125, 37126..37170, 37171..37215, 37216..37260, 37261..37305, 37306..37350, 37351..37395, 37396..37440, 37441..37485, 37486..37530, 37531..37575, 37576..37620, 37621..37665, 37666..37710, 37711..37755, 37756..37800, 37801..37845, 37846..37890, 37891..37935, 37936..37980, 37981..38025, 38026..38070, 38071..38115, 38116..38160, 38161..38205, 38206..38250, 38251..38295, 38296..38340, 38341..38385, 38386..38430, 38431..38475, 38476..38520, 38521..38565, 38566..38610, 38611..38655, 38656..38700, 38701..38745, 38746..38790, 38791..38835, 38836..38880, 38881..38925, 38926..38970, 38971..39015, 39016..39060, 39061..39105, 39106..39150, 39151..39195, 39196..39240, 39241..39285, 39286..39330, 39331..39375, 39376..39420, 39421..39465, 39466..39510, 39511..39555, 39556..39600, 39601..39645, 39646..39690, 39691..39735, 39736..39780, 39781..39825, 39826..39870, 39871..39915, 39916..39960, 39961..40005, 40006..40050, 40051..40095, 40096..40140, 40141..40185, 40186..40230, 40231..40275, 40276..40320, 40321..40365, 40366..40410, 40411..40455, 40456..40500, 40501..40545, 40546..40590, 40591..40635, 40636..40680, 40681..40725, 40726..40770, 40771..40815, 40816..40860, 40861..40905, 40906..40950, 40951..40995, 40996..41040, 41041..41085, 41086..41130, 41131..41175, 41176..41220, 41221..41265, 41266..41310, 41311..41355, 41356..41400, 41401..41445, 41446..41490, 41491..41535, 41536..41580