Questions on Algebra: Equations answered by real tutors!

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Question 44976: Hi, can someone help me solve these problems, and show me the steps? Thanks.
1. x^3-x^2-20x=0
2. 5x^2+3x=2
3. x(x-5)=36
This problem is an equation and I have tried to figure out the answer but I'm stuck.
4. 4a^4b+32ab^4
Click here to see answer by checkley71(8403)

Question 45005: write the equation of the line that passes through point (1,-8) with a slope of 0.
A)x=-8
B) y=1
C) y=-8
D) x=1

Click here to see answer by kdturnage(4)

Question 45014: if a 4.4-pound bag of dog food costs $3.52, what is the cost per pound?
Click here to see answer by Nate(3500)

Question 45012: a real estate agent received a 6% commission on the sale of a home. If the home sold for $540,000, how much was his commission?
Click here to see answer by Nate(3500)

Question 45011: which of the ordered pairs is a solution for the equation 5x-4y=20?
a. (-4,-5)
b. (0,5)
c. (0,-5)
d. (-4,0)
Click here to see answer by Nate(3500)

Question 45010: Allen bought 20 stamps at the post office in 37cents and 20 cents denominations. If the total cost of the stamps was $7.06, how many 37 cents stamps did Allen buy?
a. 16
b. 18
c. 15
d. 17
Click here to see answer by Nate(3500)

Question 45009: the length of one of the equal legs of an isosceles triangle is 8 cm less than 4 times the length of the base. If the perimeter is 29cm, find the length of one of the equal legs.
A. 11cm
b. 4cm
b. 12cm
d. 5cm
Click here to see answer by Nate(3500)

Question 45006: Adult tickets for a play cost $4 and child tickets cost $1. If there were 23 people at a performance and the theater collected $80 from ticket sales, how many children attended the play?
A. 19 children
b. 5 children
c. 3 children
d. 4 children
Click here to see answer by adamchapman(301)

Question 45003: find the slope of the line passing through the points (3,1) and (3,-1)
A)= 1
B)= -2
C)= undefined
D)= 0
Click here to see answer by adamchapman(301)

Question 44977: I know this one is easy, but I have been racking my brain, I am missing something so simple I know.
p=s-st solve for s
I first change the problem to
s-st=p that did not help
I got as far as
s = p+st
______

1
Click here to see answer by adamchapman(301)

Question 45028: what is 6 x square root of 2

Click here to see answer by tutorcecilia(2152)

Question 45065: Please help to show the work
find f(-3) when f(x) = 3/x+5 - 4/x-2
Click here to see answer by Nate(3500)

Question 45061: Please help to show the work.

(1)Compute (a) (f+g)x, (b)(f*g)x, and f(g(x)) given f(x)= x^2-1 and g(x)=x+2.

Click here to see answer by Nate(3500)

Question 44978: I know this one is easy, but I have been racking my brain, I am missing something so simple I know.
p=s-st solve for s
I first change the problem to
s-st=p that did not help
I got as far as
s = p+st
______

1
Click here to see answer by Earlsdon(6294)

Question 45073: Please help to show work
absolute value 3x+1 =9
Click here to see answer by adamchapman(301)

Question 45069: Please help to show the work.

Find the distance between the points and the midpoint of the line segment connecting the point given (-3,2) and (5,2).

Click here to see answer by checkley71(8403)

Question 45071: Please help to show work
(x^2-14)^3/2=8
Click here to see answer by Nate(3500)

Question 45089: my net pay was 200.00
i want to know how was my gross income before fica tax deduction
example gross is x less (7.65% of x) 200.00 is my net pay
gross is x
less fica 7.65%
my net is 200.00
Click here to see answer by stanbon(75887)

Question 45080: Please help to show the work. This is hard.
11. The total sales, S (in billions of dollars), for electronics and appliance stores in the United States for the years 1997 to 2004 are listed in the table below. Find a linear model that represents the data. (Hint: Please use the average of the slope of the first two points and the last two points). Let t represent the year, with t = 0 corresponding to 1997.
Year Sales
1997 64.9
1998 68.5
1999 70.2
2000 76.0
2001 81.9
2002 86.4
2003 85.2
2004 90.1

Click here to see answer by stanbon(75887)

Question 45104: the difference between two numbers is 11. Twice the smaller plus three times larger is 123. What are the numbers?
please help set up
Click here to see answer by Nate(3500)

Question 45098: Please solve the equation

Click here to see answer by Nate(3500)

Question 45120: given f(x)=-x-4, find f(a-3).
A). a-8
B). -a-1
C). a-1
D). -a-7
Click here to see answer by Nate(3500)

Question 45119: given f(x)=5x^2-3x+1, find f(-2)
A). 15
B). 27
C). -13
D). -25
Click here to see answer by stanbon(75887)

Question 45119: given f(x)=5x^2-3x+1, find f(-2)
A). 15
B). 27
C). -13
D). -25
Click here to see answer by Nate(3500)

Question 45070: please help to show work
square root 2x-1+x=4
Click here to see answer by Nate(3500)

Question 45165: solve the following system by substitution.

4x -12y= 5
-x +3y=-1
Click here to see answer by venugopalramana(3286)

Question 45159: Solve each of the following systems by addition.If a unique solution does not exist ,state whether the system is inconsistent or dependent.

problem 12 I got wrong:

2x+ 3y =1

5x+ 3y = 16
Click here to see answer by Nate(3500)

Question 45076: Please help to show work
2x^2-11x=-5 (by factoring)
Click here to see answer by checkley71(8403)

Question 45160: Solve each of the following systems by addition.If a unique solution does not exist ,state whether the system is inconsistent or dependent.

x + 5y =10
-2x -10y =-20
Click here to see answer by rapaljer(4671)

Question 45313: I got this wrong..I'm totally lost thank you

Practice 8.1 example 26:

Find the values for m and b in the following system so that the solution to the system is

(-3, 4)

5x +7y=b
mx+ y =22
Click here to see answer by tutmath(14)

Question 45293: Divide. Write the result in simplest form.
3 1/5 divided by 2 2/3
Click here to see answer by mathgenius(8)

Question 45291: Which of the following is not a fractional representation for 2/7?
a. 4/21
b. 8/28
c. 4/14
d. 6/21
Click here to see answer by mathgenius(8)

Question 45290: One recipe calls for 1/4 teaspoon vanilla. A second recipe requires for 1/2 teaspoon vanilla flour, and a third recipe calls for 1/8 teaspoon vanilla. How much vanilla is requied to make all three recipes? I know I use the 8 because it is the gcf but what do I do now?
Click here to see answer by mathgenius(8)

Question 45292: Evaluate.
[-11]-[-8]
Click here to see answer by Nate(3500)

Question 45352: I got this wrong, can you please help me. Solve the following system by addition.If a unique solution does not exist,state whether the system is inconsistent or dependent.
Section 8.2 problem 20:
x+ 5y =10
-2x -10y = -20
Click here to see answer by stanbon(75887)

Question 45374: im havin trouble with this equation can you solve it and show me wat to do
5p+8(3p+4)=264
Click here to see answer by fractalier(6550)

Question 45373: im havin trouble with this equation can you solve it and show me wat to do
5p+8(3p+4)=264
Click here to see answer by fractalier(6550)

Question 45370: find the value of y when y=.25x+2
Click here to see answer by fractalier(6550)

Question 45323: 26r-2=3r to 2nd power... Use quadratic formula to solve
Click here to see answer by tutorcecilia(2152)

Question 45424: The angle of depression from the top of a building to apoint on the groudn is 32 deg 30'. How far is the point on the ground from the top of the building if the buildlng is 252 m high?
ashley917@netzero.net
Click here to see answer by stanbon(75887)

Question 45467: how do i solve these equations? Please show step by step. thanks
Find the roots of x to the second power + 11x= -30?
Find the roots of 3x to the second power + 2x-4=0?
Find the roots of x to the second power -8+17?
Click here to see answer by checkley71(8403)

Question 45411: Can you show me the steps to solve this problem?
Find the maximum value of p=5x+2y under the following conditions.
x>0 y>0 2x+y<10 x+y<7
All symbols are greater than or equal to, or less than and equal to.
Thanks in advance.
Click here to see answer by stanbon(75887)

Question 45468: I need help solving this complex fraction:
5+4/x/5-4/x^2
Is 5x^2+4x/5x^2-4 the furthest it reduces to, or can the 5x^2 be cancelled out?

Thanks!!!!
Click here to see answer by stanbon(75887)

Question 45526: problem: solve for w: 7 (is less then /equal to 5 minus 2w is less then/ equal to 14
Click here to see answer by tutorcecilia(2152)

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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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, 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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