Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 977620: p(x)=x^3-x+1 c=1/2 solve by using synthetic division and the remainder theorem
Click here to see answer by stanbon(75887)

Question 977622: whats the quotient for
x^3+8x+4/x^2-6x+3
Click here to see answer by ankor@dixie-net.com(22740)

Question 977714: May you please help me with this equation. The pair of values below is from a direct variation. Find the missing number. (2,5) (4,y)
I've taken my first ordered pair (2,5) and set it y=kx which gave me k=5/2.
I'm having trouble figuring the second ordered pair.
Click here to see answer by stanbon(75887)

Question 977713: whats the quotient for for x^5+2x^3-11/x-1
Click here to see answer by rothauserc(4718)

Question 977709: x^2-7x-4/x-2
whats the quotient?
Click here to see answer by rothauserc(4718)

Question 977692: x^2-7x-4/x-2 whats the quotient?
Click here to see answer by Fombitz(32388)

Question 978045: Using
Find the Value of if and are the roots for
Click here to see answer by josgarithmetic(39617)

Question 978033: A rectangular garden has a length of 7 2/3 m and a width of 5 3/4 m. What its perimeter?
Click here to see answer by solver91311(24713)

Question 978012: x^3-x+3 c=1/5 how to solve with synthetic division and remainder theorem?
Click here to see answer by josgarithmetic(39617)

Question 978065: The tangent to the curve y=ax^2+bx+2 at (1,0.5) is parallel to the normal to the curve y=x^2+6x+4 at (-2,-4).Find the value of a and b.
Click here to see answer by Edwin McCravy(20055)

Question 978101: -12=(1/2)x+x
Click here to see answer by Boreal(15235)

Question 978102: I'm having a difficult time solving this equation. Please help. X/4=x-12
Click here to see answer by Alan3354(69443)

Question 978149: the equation for the tangent line at point(1,0) in the curve y=3x�-4x+1 is, y= ? and the area surrounded by the curve the tangen line ans the y-axis is?
Click here to see answer by Alan3354(69443)

Question 978222: 500p - p2 = 60,000. Solve for p.
I can't seem to figure out how to get p on one side of the equation.
Thanks for any help.
Helen
Click here to see answer by josgarithmetic(39617)

Question 978244: scientific notation inn problem solving.
Density of the earth. The volume of the earth is approximately 1.08 x 10^12km^3, and the mass of the earth is about 5.976 x 10^24kg. What is the average density of the earth, in grams per cubic centimeter?
The book's answer was approximately 5.53g/cm^3. I'm not sure how to solve it. please show me.
Click here to see answer by josgarithmetic(39617)

Question 978319: Jess sold 70 items in 2 sizes.
The large size sells for $12 each and the small size sells for $8 each.
The $ received from the sales of the large items = the $ received from the sales of the small items.
How many large items were sold?
I can get the answer = 28, but I can't set it up algebraically.
Here are my steps:
Step 1: Quantity: l + s = 70
Step 2: Dollars: 1($12)l = 1.5($8)s
Where do I go next with these equations?
Thanks for any help.
Helen
Click here to see answer by stanbon(75887)

Question 978371: If 5 times the value of a number is increased by 3, the result is 28. What is the number?
Click here to see answer by ikleyn(52781)

Question 978325: Does the product of gradients of two perpendicular lines always -1 ? If it does, then will this following pair be a contradiction: x=a and y=d for any values of c and d ?
Click here to see answer by Edwin McCravy(20055)

Question 978410: 3x+8-6(x+1)=4x+8
Click here to see answer by 428225(90)

Question 978520: whats e when h(X)=e^x
h(4)=
h(.52)=
h(1)=
h(-3)=

Click here to see answer by Alan3354(69443)

Question 978526: When a certain medical drug is administered to a patient, the number of milligrams remaining in the patient's bloodstream after t hours is modeled by
D(t) = 60e^−0.5t.
How many milligrams of the drug remain in the patient's bloodstream after 5 hours? (Round your answer to one decimal place.)
Click here to see answer by Cromlix(4381)

Question 978639: What is the system of equations that represents the problem presented below
Nan's Nursery sells bushes, trees, and perennial flowers. Each bush costs $20, each tree costs $40, and each flowers costs $2. To plant these bushes, trees, and flowers, Nan's chargers $10 per bush, $10 per tree, and $1 per flower. Also Nan will insure the items she plants for 1 year at a charge of $4 per bush, $6 per tree, and $0.20 per flower. A new Homeowner has budgeted $1000 for purchases, $400 for planting, and $150 for insuring purchases from Nan's. How many bushes, trees, and flowers should the homeowner buy to exactly use up the money budgeted?
Click here to see answer by richwmiller(17219)

Question 978687: How do i find the y-intercept of a line whose equation is y=5/4x-18/5
Click here to see answer by josgarithmetic(39617)

Question 978844: How do I solve: 5a + 11 + 3a - 7 = -4

Click here to see answer by josgarithmetic(39617)

Question 978879: x+y+z=192
x=y+z
x=3z
solve by using elimination�
Click here to see answer by Edwin McCravy(20055)

Question 978922: How do I divide 18.5 by 5

Click here to see answer by Fombitz(32388)

Question 979000: -4(5n+2)=4 what is n
Click here to see answer by MathLover1(20849)

Question 978986: Solve the system of equations:
x+2y−z=52x+3y−3z=8y+z=2

Click here to see answer by Alan3354(69443)

Question 979053: (x+3)(x+3)=9
Find x
Click here to see answer by josgarithmetic(39617)

Question 979072: 5^2x+4=1
9(3^2y)=10(3*)=-3
Click here to see answer by Alan3354(69443)

Question 976189: a quantity y is partly constant and partly varies inversely as x2.if y=7 when x=10 and y=5.5 when x=20,write an equation connecting y and x,hence y when x=18.
Click here to see answer by Timnewman(323)

Question 979142: A grain of sand is placed on the first square of a chessboard, two grains on the second square, four grains on the third, eight on the fourth, and so on. Without a calculator, use scientific notation to approximate the number of grains of sand required for the 64th square. (Hint: Use the fact that 2^10 ≈ 10^3.)
I got 9.2 x 10^18. The books answer was 8 x 10^18. I used the calculator for this problem. If I'm wrong, please help me.
Click here to see answer by MathLover1(20849)

Question 979152: What is the acute angle that is formed by the line y - 1/4 x - 2 = 0 and the x-axis?

Click here to see answer by MathLover1(20849)

Question 979213: 4(k-6)-(3k+2)=-5
Click here to see answer by Boreal(15235)

Question 979212: Divide rs.350 into two parts such that the half of greater part exceeds the smaller part by hunderd
Click here to see answer by Cromlix(4381)

Question 979211: if x=2 what is the value of Y
Click here to see answer by MathLover1(20849)

Question 979246: Lindsay put $18,000 in an a bank account on the day her son was born. If the account earned 6.15% interest compounded quarterly, what was the total in the account when her son turned 18? Round the final answer to the nearest cent
Click here to see answer by Boreal(15235)

Question 979255: Solve the equation:

Click here to see answer by Alan3354(69443)

Question 979244: A train left the alabama and traveled east at an average speed of 12 mph. An boat left one hour later and traveled in the same direction but with an average speed of 15 mph. How long did the train travel before the boat caught up?
Click here to see answer by rfer(16322)

Question 979284: If x is a positive integer,which of the following must be an even integer
A. X to the 2nd power
B. 2x+2
Click here to see answer by Gogonati(855)

Question 979296: solve for x:
2x/4 + 3x/5 = one/20
Click here to see answer by josgarithmetic(39617)

Question 979305: 3x/4 - 4/3x = 0
my answer is x= 4/3
is it correct? do we have the same answers?
Click here to see answer by josgarithmetic(39617)

Question 979366: What is the lenth of the smallest side of a triangle if the measures of the angles are in ratio 1:2:3, and the perimeter is 30 + 10√3?
~The only answer choice I have is 10 or 20. I have tried but with both attempts, I got it wrong. Please help!
Click here to see answer by MathLover1(20849)

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