Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 120688: Can I have some help with this expression?
Evaluate the expression and write the result in the form a + bi.
1/(9 + 2i) - 1/(2 + i)
Click here to see answer by jim_thompson5910(35256)

Question 120619: May I have some help evaluating this expression?
Evaluate the expression and write the result in the form a + bi.
sqrt(1/5) sqrt(-125
Click here to see answer by nabla(475)

Question 120729: Jill has $3.50 in nickels and dimes. If she has 50 coins, how many of each type of coin does she have?
Click here to see answer by rapaljer(4671)

Question 120731: The length of a rectangle is 2in more than twice its width. If the perimeter of the rectangle is 34in, find the dimensions of the rectangle.
Click here to see answer by rapaljer(4671)

Question 120706: If n is an odd integer, which is the following is the square of the next larger odd integer?
The answer is n^2+4n+4
can you explain how you get that?
thank you
Click here to see answer by rapaljer(4671)

Question 120755: x/5-x/6=3
what is x
Click here to see answer by rapaljer(4671)

Question 120776: In excercises 34-36,use the spinner to find the probability. The spinner is divided into equal parts.The spinner numbers are 1-12 in a circle
34.What is the probability that the spinner stops on a number whose ones digit 2?
Any help with this equation would be Greatly appreciated.
Click here to see answer by rapaljer(4671)

Question 120785: In excercises 34-36,use the spinner to find the probability. The spinner is divided into equal parts.The spinner numbers are 1-12 in a circle
35. What are the odds in favor of stopping on a multiple of 3?
Any help with this equation would be Greatly appreciated.
Click here to see answer by checkley71(8403)

Question 120771: A map has a scale of 1 centimeter : 8 kilometers. Use the given actual distance to find the distance on the map.
4 km
Any help with this equation would be Greatly appreciated.
Click here to see answer by praseenakos@yahoo.com(507)

Question 120786: In excercises 34-36,use the spinner to find the probability. The spinner is divided into equal parts.The spinner numbers are 1-12 in a circle
If you spin the spiner 100 times, how many times do you expect it to stop on a number less than 10?
Any help with this equation would be Greatly appreciated.
Click here to see answer by checkley71(8403)

Question 120770: A map has a scale of 1 centimeter : 8 kilometers. Use the given actual distance to find the distance on the map.
176 km
Any help with this equation would be Greatly appreciated.
Click here to see answer by praseenakos@yahoo.com(507)

Question 120788: In excercises 34-36,use the spinner to find the probability. The spinner is divided into equal parts.The spinner numbers are 1-12 in a circle
You are renting a car. YOu can choose a compact,mid-size,full size or sports utility vehicle.from those categories you can choose a low,average,or high priced model. How many different automoblie choices do you have?
Any help with this equation would be Greatly appreciated.
Click here to see answer by stanbon(75887)

Question 120799: Simplify

-3(6+1)
Click here to see answer by checkley71(8403)

Question 120801: IF A/10=0.57, A IS EQUAL TO
57 OR .057 OR 5 7/10 OR 0.057 OR NONE OF THESE
Click here to see answer by checkley71(8403)

Question 120804:
Solve 3x + 2y = 9 for y in terms of x.
Click here to see answer by checkley71(8403)

Question 120803: Solve 3x + 2y = 9 for x in terms of y.
Click here to see answer by checkley71(8403)

Question 120806: Simplify 0.06 divided by 7.2
Click here to see answer by checkley71(8403)

Question 120806: Simplify 0.06 divided by 7.2
Click here to see answer by glorychild92(1)

Question 120800: simplify
4x-7(x + 3)
Click here to see answer by checkley71(8403)

Question 120800: simplify
4x-7(x + 3)
Click here to see answer by MathLover1(20849)

Question 120802: simplify
-18a 6th power 4x 3rd power
______________ X ______________
x 2nd power 9a 2nd power
Click here to see answer by jim_thompson5910(35256)

Question 120811: Hi. Can I have some help finishing this expression?
Find all solutions of the equation and express them in the form a + bi.
x^2 + 7x + 12 = 0
Click here to see answer by jim_thompson5910(35256)

Question 120609: how will i solve 1=1/3a-5
Click here to see answer by jim_thompson5910(35256)

Question 120893:
16-4(y+1)=y+6=5y
2/3(a-6)=2(a+4)
-35-5(x-3)=x+2(x-2)
Click here to see answer by checkley71(8403)

Question 120915:

Factor 15m^4-6m^2+9m

Click here to see answer by checkley71(8403)

Question 120946: I need help solving for N. I can guess the right answer (which is 4) and use the "plug in and try" method, but I need to know the right steps to solve it. We do not have a math textbook at school. Teacher writes on board and then hands out homework sheets, so I have nothing to refer back to when it comes time to do homework!
Problem:
44 divided by N = 15 minus N

Thank you kindly. My mom is usually very good at math and algebra, but for some reason tonight she just can't work it out!

Click here to see answer by checkley71(8403)

Question 120962: 1/a=1/b+1/c for B
Click here to see answer by edjones(8007)

Question 121036: 2X-6>=-18
Click here to see answer by stanbon(75887)

Question 121047:

X^6-1=0
i need all possible solutions
Click here to see answer by checkley71(8403)

Question 121018: Solve each system by the substitution method. determine whether the equstions are independent, dependent, or inconsistent.

x=2y-7
3x+2y=-5
Click here to see answer by jim_thompson5910(35256)

Question 121071: Solve each system by substitution or addition.
2y-x=3
x=3y-5
Click here to see answer by jim_thompson5910(35256)

Question 121120: How would I solve this:
if a plane travels with an average speed of 11[mi/h] and it took 3 hours to get to the destination. What is the total distance it flew?
Click here to see answer by stanbon(75887)

Question 121020: Solve each system by the substitution method.
3x+y=2
-x-3y=6
Click here to see answer by checkley71(8403)

Question 121017: Solve each system by the addition method.
(1/8)x+(1/4)y+5
(1/6)x+(1/2)y=7

and

1.5x-2y=-0.25
3x+1.5y=6.375
Click here to see answer by checkley71(8403)

Question 121126: simplify
3/12 divided by 3/15
solve:
x/7-1/2=x-11/2
Click here to see answer by edjones(8007)

Question 121195: Hello. May I have some help solving this equation?
Find all real solutions of the following equation. (If there are extra answer boxes, enter NONE.)
x^4 - 13x2 + 30 = 0
Click here to see answer by checkley71(8403)

Question 121193: May I please have some help solving this equation?
Find all solutions of the equation below. (If there are more answer boxes than answers, enter NONE.)
x^4 - 256 = 0
Click here to see answer by stanbon(75887)

Question 121207: Hi. May I have some help finding solutions to the equation?
Find all real solutions of the following equation. (If there are extra answer boxes, enter NONE.)
x^3 - x^2 + 2x - 3 = x^2 + 1
Click here to see answer by Edwin McCravy(20055)

Question 121221: Solve for the unknown: 3(y - 17) = -5(y - 23)
Click here to see answer by jim_thompson5910(35256)

Question 121219: Solve the unknown: 6(z + 8) = -8z - 2
Click here to see answer by jim_thompson5910(35256)

Question 121228: Please help with this equation,
x/2-x/6=2
Thank you
Click here to see answer by tutor_paul(519)

Question 121228: Please help with this equation,
x/2-x/6=2
Thank you
Click here to see answer by stanbon(75887)

Question 121205: Hi May I have some help with finding solutions to this equation?
Find all real solutions of the following equation. (If there are extra answer boxes, enter NONE.)
x^5 + 216x^2 = 0
Click here to see answer by Nate(3500)

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, 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