Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 983258: two pipes 2 can fill a tank in 61 minutes if both are turned on. if only one is used, it would take 57 minutes longer for the smaller pipe to fill the tank than the larger pipe. how long will it take for the smaller pipe to fill the tank?(round off the answer to the nearest tenth.
the answer is 156.8 minutes. but how please tell me.
Click here to see answer by josgarithmetic(39616)

Question 983277: S=ut+1/2at^2. Use this formula to find t when s=6 u=11 a=4
Click here to see answer by macston(5194)

Question 983508: hi there i need step by step solution so i can do this myself
the area of a rectangle field is 198 m^2. if it takes 58 m of fencing to enclose the field, what are the dimensions of the field? (hint the length plus the withth is 29 meters)
Click here to see answer by josgarithmetic(39616)

Question 983522: a right angled triangle has two equal sides. of the hypotenuse is 12 cm, what is the length of the equal sides?

Click here to see answer by solver91311(24713)

Question 983540: 2√x=x−8
I need to figure out how to turn this into a (x^2 + 2x + 1) type of problem so that I can use the quadratic equation to further factor it.
Click here to see answer by josgarithmetic(39616)

Question 983436: Formulate quadratic equations involving the dimensions of the floor of the room. Find the sets on these equtions?
Ex: room number length width
304 280 ft. 234ft.
Please help me now? Because i need the answer right now please
Click here to see answer by mananth(16946)

Question 983721: 2/x-4=1/x+5 solve for x
Click here to see answer by josgarithmetic(39616)

Question 983788: (3x+1)+(2x+5)
Click here to see answer by stanbon(75887)

Question 984044: The profit P (in dollars) on each cellular phone manufactured by Clear Line Inc., is related to the number of cellular phones produced by each day according to the equation P=0.82x^2 + 4.25 + 45 where x is the number of cellular phones produced by each day (in hundreds) and 2 is less than and equal to x and less than and equal to 8.
a. Find the profit per cellular phone if 400 cellular phones are produced per day.
b. About how many cellular phones should be produced each day to make a profit of $70 per phone?
Click here to see answer by solver91311(24713)

Question 984228: a ball is thrown into the air at a speed of 115ft/sec from an initial height of 6ft off the ground. How long will it take the ball to hit the ground?

Click here to see answer by Boreal(15235)

Question 984335: Z2-4z+4
Click here to see answer by MathLover1(20849)

Question 984419: The area of a garden is 160 m2. Suppose the length of the length of the garden is 3 m more than twice its width. What is the length of the garden?

Click here to see answer by solver91311(24713)

Question 984699: Please help me solve this equation! Thank you so much! Solve for a

(5/2 is a fraction with an a as a variable)
Click here to see answer by josgarithmetic(39616)

Question 984699: Please help me solve this equation! Thank you so much! Solve for a

(5/2 is a fraction with an a as a variable)
Click here to see answer by Boreal(15235)

Question 984699: Please help me solve this equation! Thank you so much! Solve for a

(5/2 is a fraction with an a as a variable)
Click here to see answer by solver91311(24713)

Question 984703: Thank you so much for helping me!

Click here to see answer by Boreal(15235)

Question 984852: How do you factor -2x+2x-24
Click here to see answer by MathLover1(20849)

Question 984954: What is the equation for x2+8x=-7
Click here to see answer by solver91311(24713)

Question 985018: Solve equation using the quadratic formula. Simplify and reduce your answer with no decimals.
4x^2-5x+1=0
Click here to see answer by macston(5194)

Question 985056: give some examples of standard form of a quadratic equation?
Click here to see answer by MathLover1(20849)

Question 985159: determine the coordinates of the intersection of the two lines y+2x=3 y-x=2

Click here to see answer by srinivas.g(540)

Question 985272: Suppose the profit function company selling x items of a product is given by f(x)=-6x^2+720x-12,500.
Click here to see answer by jim_thompson5910(35256)

Question 985334: birr 6500 were divided equally among certain number of persons.had there been 15more persons,each would have got birr30less.find the original number of persons.
Click here to see answer by macston(5194)

Question 985321: x + root Y = 11,
root x + y = 7
Find the value of x & y.
Click here to see answer by Alan3354(69443)

Question 985418: The problem is this.
2/3 (6c - 12) + 1/2 (8c - 12) = 22 - c
I have tried to work it and I do this but I don't think its right.
I simplified it to this...
4c - 8 + 4c - 6 =22-c
8c - 14 = 22 - c
9c - 14 = 22
9c = 36
So, c = 4?
Is this right?

Click here to see answer by josgarithmetic(39616)

Question 985443: WHAT 2 NUMBERS WHEN MULTIPLIED EQUAL -8 BUT WHAT 2 SAME NUMBERS WHEN ADDED EQUAL -7.
XY=-8
X+Y= -7
Click here to see answer by josgarithmetic(39616)

Question 985658: Please solve:
Given that the root of ax^2+bx+2=0 is 2-, find the values of a and b, and the other root. (assume a and b are integers)
Thanks.
Click here to see answer by ikleyn(52776)

Question 985612: Find the least common multiple of these two expressions.
and
Click here to see answer by Alan3354(69443)

Question 985737: y=x^2+1
I need to find whether the graph opens up, or opens down, find the vertex, and the axis of symmetry. Please help... 8'(
Click here to see answer by MathTherapy(10551)

Question 985906: Solve for X:
X^2(x-1/5)-x(x-1/5)+12/49(x-1/5)=0

Click here to see answer by macston(5194)

Question 985930: Find the roots of 3x^2+2x-4=0
Click here to see answer by ikleyn(52776)

Question 986090: 5^x-x=6
Click here to see answer by Alan3354(69443)

Question 985991: If x^4 +3x^2 + 1 = 0
then x = ?
Click here to see answer by Alan3354(69443)

Question 986091:
Click here to see answer by Alan3354(69443)

Question 986190: How can i get the answer from this
8x + 3x^2 - 2000
Click here to see answer by vleith(2983)

Question 986190: How can i get the answer from this
8x + 3x^2 - 2000
Click here to see answer by Alan3354(69443)

Question 986266: Sara found the following equation:
A= pi sqrt w/g
i) if w=25 and g=16, Find A in terms of pi.
ii) Sara now wants to use the formula to find w in a different situation. Rewrite the formula with w as the subject.
Click here to see answer by stanbon(75887)

Question 986325: A.5+(-2)
B.-2+4
C.3-(-4)
D.1-1(-5)
Click here to see answer by Alan3354(69443)

Question 986388: x2+3x-28=0
Click here to see answer by Boreal(15235)

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