Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 248877: x+(8/x)=-9
Click here to see answer by unlockmath(1688)

Question 248882: Solve this system by elimination
5x=3y=19
2x-5y=11

Click here to see answer by vaggio(1)

Question 248880: Solve this system by substitution
m-2n=16
4m=n=1
Click here to see answer by tutorcecilia(2152)

Question 248874: The volume, V, of a given mass of a gas varies directly as the temperature, T, and inversely as the pressure, if V=231cm^3 when T=42 and P=20kg/cm^2, what is the volume when T=30 and P=15kg/cm?
Click here to see answer by Theo(13342)

Question 249032: What volumes of 60% hydrocloric acid solution and 30% hydrocloric acid solution must be mixed to make 125 ml of 36% hydrocloric acid solution.
Click here to see answer by checkley77(12844)

Question 249083: calculate g(-5)
Click here to see answer by College Student(505)

Question 249031: An open-toppped bix is to be constructed from a square piece of cardboard by removing a square with side length 8 cm from each corner and folding up the edges. The resulting box is to have a volume of 512 cm3. Find the dimensions of the original piece of cardboard. Include a diagran, algebraic model and all.
Click here to see answer by ankor@dixie-net.com(22740)

Question 249127: 2^3-10[4-(-2+18)3]
Click here to see answer by actuary(112)

Question 249165: x^2-81=0
Click here to see answer by stanbon(75887)

Question 249126: the ratio of lenght to width of a rectangle corral is to be 8 to 5. enough lumber is available for a 78-yard fence the (perimeter). What will be the length and width of the corral if all the lumber is used? write two equations and in two unknowns and solve
Click here to see answer by Theo(13342)

Question 249197: 2c+4-3c=-9+c+5
Click here to see answer by richwmiller(17219)

Question 249218: Use a calculator to find an approximation to the nearest ten-thousandth.
10-0.9282 thanks
Click here to see answer by Alan3354(69443)

Question 249217: Use a calculator to find an approximation to the nearest ten-thousandth.
thanks
e4.28
Click here to see answer by tutorcecilia(2152)

Question 249253: 9.1= x over -0.7
Click here to see answer by tutorcecilia(2152)

Question 249236: Write a quadratic function having the given solutions: 6, -2
Click here to see answer by Edwin McCravy(20055)

Question 249236: Write a quadratic function having the given solutions: 6, -2
Click here to see answer by tutorcecilia(2152)

Question 249243: The variables x and y are related by the following equation: x = 3y2 - 5
If x = 103, what positive value of y makes this an equality?
Click here to see answer by rfer(16322)

Question 249365: n divided by 67 equals 12. How do you solve for n?
Click here to see answer by richwmiller(17219)

Question 249432: Solve for w: V=4wh^2+2wh
Click here to see answer by checkley77(12844)

Question 249449: change 28/9 to a mixed or whole number
Click here to see answer by rfer(16322)

Question 249447: Solve the equation 1/3x exp2 +1 = 33
Click here to see answer by rfer(16322)

Question 249650: please help me solve this equation:
Click here to see answer by richwmiller(17219)

Question 249591: square area is given as 189sq.ft Width is plus 3 more than length. I set up this way. [x+3]y=189

Click here to see answer by jsmallt9(3758)

Question 249728: Express 0.18 as a percentage
Click here to see answer by College Student(505)

Question 249748: Express 25/5 as a percentage

Thank you in advance for your help!!!
Click here to see answer by College Student(505)

Question 249757: Two tenths of fifty equals ?

Thanks in advance for your help!
Click here to see answer by mad_puppy96(1)

Question 249769: A fire is raging in an apartment house. You see kids in a window in an upstairs window. The window is 24feet off the ground. You have a ladders, but it only extends to only 30 feet. How far from the building must you place the ladder to reach the kids?

Please solve and answer. Thank you
Click here to see answer by edjones(8007)

Question 249830: What is the answer to the question -3(absolute value) x=-9? I don't understand why I got this wrong on this test I took. I got the answer 3 but that was wrong. Email me at mhwilkerson@lovett.org.
Click here to see answer by stanbon(75887)

Question 249958: Solve for d:
4x+3d=5+2d

Please show me each step.
Thanks
Click here to see answer by College Student(505)

Question 249984: If twice a number is subtracted from eight, the difference is twelve. What is the number?
Click here to see answer by College Student(505)

Question 249989: An apple costs the same as 2oranges. Together, an orange and a banana cost .10 more than an apple. Two oranges cost .15 more than a banana. what is the cost for one of each fruit?
Click here to see answer by ankor@dixie-net.com(22740)

Question 249983: Solve each system by substitution. Check your solution.
19.
a-1.2b=-3
0.2b+0.6a=12
Click here to see answer by checkley77(12844)

Question 250044: If you paid $44 (including tax) for an item where the tax rate is 20%, how much was the price before tax? Show an equation and solve.
Click here to see answer by Fombitz(32388)

Question 250224: solve: (2y+3)(3y-2)
Click here to see answer by solver91311(24713)

Question 250249: There are 5 pears and Travis takes 2 away, how many are left. Expressions and equations
Click here to see answer by stanbon(75887)

Question 250264: Evaluate the logarithmic equation for three values of x that are greater than 1, three values of x that are between 0 and 1, and at x=1. Use the resulting ordered pairs to plot the graph. State the equation of the line asymptotic to the graph (if any).
y = log1/7 (x+2)
THIS IS MY ANSWER NOT SURE IF IT RIGHT, I ALSO NEED TO GRAPH IT I DO NOT KNOW HOW TO DO THAT CAN YOU SHOW ME. PLEASE!!!!!!!!!!!!!!
x=1 ; y =-0.5646
x = 1/3; y= -0.4354
x = 1/2; y = -0.4709
x = 3/4; y = -0.5199
x = 2; y = -0.7124
x = 3; y = -0.8271
x = 4; y = -0.9208
Thank you, so much.
Click here to see answer by Alan3354(69443)

Question 250274: What is the answer to: Seperate 92 into two parts, one of which is 1/3 of the other. I need the equation and answer please. Thank you.
Click here to see answer by College Student(505)

Question 250306: Can you please show me step by step how to do: 2b + 4(b - 1)= 5(b-1)?
This is my first time doing this(freshman).
Thank You
Click here to see answer by richwmiller(17219)

Question 250306: Can you please show me step by step how to do: 2b + 4(b - 1)= 5(b-1)?
This is my first time doing this(freshman).
Thank You
Click here to see answer by solver91311(24713)

Question 250329: Express 37.5 as a common fraction.
I asked this question yesterday and got the answer, but I need to know how to work the problem out. Thanks so much for the help in advance!
Click here to see answer by solver91311(24713)

Question 250367: what two numbers when multiplied equals 9000 and when added equals to negative 200

Click here to see answer by richwmiller(17219)

Question 250395: 2(x+1)=3x-1 Solve for x
Click here to see answer by jim_thompson5910(35256)

Question 250395: 2(x+1)=3x-1 Solve for x
Click here to see answer by mathitutor(25)

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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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