Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 463964: The positive difference between x and 2/9 is the same as the positive difference between 3/7 and 4/11. what could be the value of x?
Click here to see answer by edjones(8007)

Question 464009: The stopping distance d of a car after the brakes are applied varies directly as the square of the speed r. If a car travelling 30 mph can stop in 50 ft, how many feet will it take the same car to stop when it is travelling 20 mph?
Click here to see answer by stanbon(75887)

Question 464041: please help me solve the following equation 7x^(2)+4x-3=0

Click here to see answer by algebrahouse.com(1659)

Question 464043: -8x-20=25 and 1/3
x=?
Click here to see answer by algebrahouse.com(1659)

Question 464057: Write an equation of the line that contains (-5,4) and is parallel to 4x+6y=18
Click here to see answer by jorel1380(3719)

Question 464046: 5/3x+1/3x=2x+40/3+8/3x
The solution s x=?
Click here to see answer by jorel1380(3719)

Question 464087: How can you express A = {3,9,27,81,243} using a set-builder notation?
Click here to see answer by robertb(5830)

Question 464158: Factor the trinomial.
t^2-16t+63
Click here to see answer by ewatrrr(24785)

Question 464176: Book says to solve: 1 over x = 2 over 3-x. I know you multiply (-1) into 2 over 3 - x but I'm lost after that. Can you help me?
Thanks
Click here to see answer by jorel1380(3719)

Question 463805: A quadratic relation has zeros at -2 and 8, and a y-intercept of 8. Determine the equation of the relation in veertex form
Click here to see answer by lwsshak3(11628)

Question 463971: A line through the midpoint of and perpendicular to the segment joining points (1,0) and (5,2)
Click here to see answer by lwsshak3(11628)

Question 464266: Can you show me the STEPS to solve the following: 1 over x-1 + 4 over x^2-1 - 2 over x^2-2x+1. Thanks.
Click here to see answer by Gogonati(855)

Question 464300: the sum of ages of Gandhi and Ahmed is 38. Seven years ago, Ghandhi was three times as old as Ahmed. Find there present ages.
Click here to see answer by chirag17oct@gmail.com(1)

Question 464360: Can some one show me how to solve this inequality?
2x + 6 < 6x + 2

Click here to see answer by stanbon(75887)

Question 464393: 3x-17=7x-9
Click here to see answer by rfer(16322)

Question 464423: Can you please show me the steps to solve the following: t-2 over t+3 = 3 over 8. Thanks.
Click here to see answer by rfer(16322)

Question 464416: Factor.
81s^6-3p^6
What is the correct factorization?
Click here to see answer by Gogonati(855)

Question 464422: Can you show me the steps to solve 5 over 3x + 3 over x = 1? Thanks!
Click here to see answer by algebrahouse.com(1659)

Question 464456: 3w3 − 24w2 + 45w = 0
w=
w=
w=
Click here to see answer by algebrahouse.com(1659)

Question 464441: Factor completely: 81c^2-36+4
Click here to see answer by Alan3354(69443)

Question 464497: is 2/3 over 1/6 over 4/3 equal to is 2/3 over 1/6 over 4/3 ?
Click here to see answer by rfer(16322)

Question 464603: find the indicated outputs for f(x)=3x�-2x
f(0)=
f(-1)=
f(2)=
Click here to see answer by stanbon(75887)

Question 464606: The equation y=-1777x+27,153 can be used to predict the number y of gun deaths in the U.S. x years after 2000,that is,x=0 corresonds to 2000,x=2 corresonds to 2002,x=6 corresonds to 2006, and so on. Predict the number of gun deaths in 2006 and 2009. In wagt year will the number of gun deaths be 9383?
The predicted gun deaths in 2006 will be?
the predicted gun deaths in 20069 will be?
The predicted number of gun deaths will be 9383 in the year?
Click here to see answer by jorel1380(3719)

Question 464616: Soybean meal is 12% protein; cornmeal is 6% protein. How many pounds of each should be mixed together in order to get 240-lb mixture that is 10% protein?
How many pounds of the cornmeal should be in the mixture?
How many pounds of the soybean meal should be in the mixture?
Click here to see answer by jorel1380(3719)

Question 464661: 2(x-3)= 5x

3n= 6(3-n)
2(a-1) = 3a + 7
Click here to see answer by robertb(5830)

Question 464682: 9x-14<-32+solve+by+using+the+addition+and+multiplication+principles
Click here to see answer by rfer(16322)

Question 464705: a mini van is rated for maximum carrying capacity of 900 pounds.
a.) if the luggage weighs 100 pounds, what is the average weight allowable for 5 passengers?
Click here to see answer by robertb(5830)

Question 464712: Scott has $30 to buy new baseball cards for his collection. He has chosen a Greg Maddux rookie card that costs $8. What is the most he can spend on other baseball cards?

Click here to see answer by jorel1380(3719)

Question 464707: Katelynn is saving her money to buy a new bike Bikes that she likes start at 475 If she already has saved 285 what is the least amount she must save?
Click here to see answer by aortiz12499(3)

Question 464742: Seven less than what number n is greater than negative 3
n= 4 n > 4 or n < 4
Click here to see answer by robertb(5830)

Question 464745: Kevin took his car to Dwain's Automotive to have the engine replaced. Kevin was told that at the most, the total bill for parts and labor would be $6,300. The cost of the parts was $3,900. How much could Kevin expect to pay for labor?
Click here to see answer by aortiz12499(3)

Question 464851: Answer this question please, thank you.
Multiply: (2x+3)(5x-7)
Thanks again!!
Click here to see answer by stanbon(75887)

Question 464877: 4 1/10 divided by 3 1/7
Click here to see answer by stanbon(75887)

Question 464877: 4 1/10 divided by 3 1/7
Click here to see answer by solver91311(24713)

Question 464908: what is 2over3 + 5over6 + 7over12?
Click here to see answer by jorel1380(3719)

Question 464919: Please answer this equation:
Find the equation of the line that goes through the point (3, 2) and has a slope of -3 over 2.
Thanks (:

Click here to see answer by sudhanshu_kmr(1152)

Question 464931: This problem is on my study guide for my final tomorrow (06/28/11)! Please help! I'm not sure if this even falls under just "Equations."
x�-16 over x�+6x+8
and x�-3x-10 over x�-25

Click here to see answer by josmiceli(19441)

Question 464948: Find the vertex, the line of symmetry, the maximum or minimum value of the quadratic function, and graph the function. f(x) = -x^2+8x+6
Click here to see answer by ewatrrr(24785)

Question 464950: Find the vertex, the line of symmetry, the maximum or minimum value of the quadratic function, and graph the function. f(x) = -(x+8)^2-3
Click here to see answer by ewatrrr(24785)

Question 464932: x�-6x over x�+8x+16
PLUS 6 over x+4
**The answer I got is x�+24 over (x+4)(x+4)**
Click here to see answer by ewatrrr(24785)

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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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, 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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