Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 415194: One number is six less than another. Their sum is twelve. Find the numbers. (Enter solutions from smallest to largest.)
Click here to see answer by ewatrrr(10682)

Question 415193: One number is four more than another. Their sum is eight. Find both numbers. (Enter solutions from smallest to largest.)
Click here to see answer by ewatrrr(10682)

Question 415195: One number is fifteen more than twice another. If their sum is decreased by nine, the result is eighteen. Find the numbers. (Enter solutions from smallest to largest.)
Click here to see answer by ewatrrr(10682)

Question 415191: Five times the difference of twice a number and nine is negative twenty-five. Find the number.
Click here to see answer by ewatrrr(10682)

Question 415190: Five times the sum of a number and seven is twenty. Find the number.
Click here to see answer by ewatrrr(10682)

Question 415188: The difference of fifteen and a number is negative six. Find the number.
Click here to see answer by ewatrrr(10682)

Question 415166: Solve the following for q:
A=qy
Click here to see answer by ewatrrr(10682)

Question 415168: Solve the following for a:
p=a+b+k
Click here to see answer by ewatrrr(10682)

Question 415169: Solve the following for v
h=3vt+13t^2
Click here to see answer by ewatrrr(10682)

Question 415170: Solve the following for b
b-3=-2(x+9)
Click here to see answer by ewatrrr(10682)

Question 415171: Solve the following formula for y
x/5-y/3=1
Click here to see answer by ewatrrr(10682)

Question 415163: Solve the following equation:
4y-2=8y+14
Click here to see answer by ewatrrr(10682)

Question 415196: Shelly is 5 years older than Michele. Four years ago the sum of their ages was 65. Find the age of each person now.
Shelly is(fill in the answer) years
Michele is (fill in the answer) years.
Four years ago Now
Shelly x + 1 x + 5
Michele x - 4 x
The chart could probably help
Click here to see answer by MathLover1(6815)

Question 415162: Simplify both sides as much as possible, and then solve:
18-13=1/3a+1/2a-5/12a
Click here to see answer by ewatrrr(10682)

Question 415187: The sum of a number and six is fourteen. Find the number.
Click here to see answer by Alan3354(31538)

Question 415352: so i was using the practice questions and the problem was
1xsquared+ -7x +10=0
now after putting it into the formula and doing some work i came to 7 +/- 89 (under the square root sign). how do i solve from there if 89 doesnt have a perfect square root?
Click here to see answer by ewatrrr(10682)

Question 415365: how do you find the information you need after using the formula -b/2*a ?

Click here to see answer by praseenakos@yahoo.com(507)

Question 415558: can you show me the steps of solving the quadratic equation but in the other form that's -(b)+-square root of b squared minus 4ac over 2a because i know how to solve it but i don't understand it.
Click here to see answer by Alan3354(31538)

Question 415706: I'm trying to solve this parabola and I'm kind of stumped
With my equation, which is ... (x+-24)(x+-0) =? and I was told to use the process that we call " foil " but I'm still a little lost.
Thanks :)
Click here to see answer by richard1234(5390)

Question 415869: The perimeter of a square is 64 centimeters. Find the length of one side.
s = centimeters
Fill in the blank
Click here to see answer by Alan3354(31538)

Question 415878: The length of a rectangle is 7 feet less than twice the width. The perimeter is 64 feet. Find the length and width.
L= ? feet
w= ? feet
Click here to see answer by ewatrrr(10682)

Question 415876: The length of a rectangle is 7 inches more than three times the width. The perimeter is 86 inches. Find the length and width.
L=... inches
w=... inches
Fill in the blank(...)
Click here to see answer by ewatrrr(10682)

Question 415873: The length of a rectangle is 5 inches more than the width. The perimeter is 30 inches. Find the length and width.
L =... inches
w= ... inches
Fill in the blank(...)
Click here to see answer by ewatrrr(10682)

Question 415881: Marissa has $4.70 in quarters and dimes. If she has 9 more quarters than dimes, how many of each coin does she have?
?dimes
?quarters

Dimes Quarters
Number: x x + 9
Value(cents): 10(x) 25(x + 9)
Click here to see answer by solver91311(17077)

Question 416110: Simultaneous Equations: sorry didnt see Cat. for that:
Solve for x,y, and z:
x + 2y + z = 2
5x = z
y = -2x
Click here to see answer by mananth(12270)

Question 416154: I'm trying to find the number of tickets sold on the last day, how many days will the peak or low occur and now many tickets will be sold at its lowest. What is the point of the vertex
Click here to see answer by richard1234(5390)

Question 416352: A car travels 300 km at a certain speed. If the speed had been increased by 10 km/h, the trip could have been made in 1 hour or less time. Find the actual speed.
s = d/t
s = 300/60 = 50 what about the 10 increase
Click here to see answer by josmiceli(9819)

Question 416350: Solve by using a quadratic equation to find three consecutive integers such that the sum of their squares is 1877.
Click here to see answer by htmentor(809)

Question 416358: help me with this question. the directions are slove each equation by graphing. If integral roots cannot be found, estimate the roots by stating the consecutive integers between which the roots lie. The question is X^2 + 7x + 9.
Click here to see answer by josmiceli(9819)

Question 416443: Solve the following equation:
4y-2=8y+14
Click here to see answer by MathLover1(6815)

Question 416453: Solve the following equation.
0.5x-0.1=0.9-0.7(4-2x)
Click here to see answer by MathLover1(6815)

Question 416448: 10 is 50% of what number?
Click here to see answer by rfer(12731)

Question 416447: What percent of 25 is 15?
Click here to see answer by rfer(12731)

Question 416444: Solve the equation:
5/2y+1/2=1/2y-5/2
Click here to see answer by rfer(12731)

Question 416441: Solve the following equation:
4x+1/2=3/4x-9/8
Click here to see answer by rfer(12731)

Question 416568: Can you help me figure out the write values to use, when graphing a quadratic function using a table.
Click here to see answer by praseenakos@yahoo.com(507)

Question 416649: Find two consecutive even integers whose product is 24 more than 8 times the larger integer
Click here to see answer by stanbon(57984)

Question 416698: The square of a number is 10 less than 7 times the number. Find the number.
Click here to see answer by mananth(12270)

Question 416744: Quadratic equations can be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods? When might each method be most appropriate? Which method do you prefer? Why?

Click here to see answer by lwsshak3(6768)

Question 417000: Shelly is 5 years older than Michele. Four years ago the sum of their ages was 65. Find the age of each person now.
Shelly is ? years
Michele is ? years
Click here to see answer by ewatrrr(10682)

Question 416994: How do you solve x2=36
Click here to see answer by ewatrrr(10682)

Question 416999: 3x^2+39x+108=0
Click here to see answer by checkley79(3056)

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