Questions on Algebra: Equations answered by real tutors!

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Question 147850: Evaluate the sum 17.12 + (-5.23)+ 1.72
Click here to see answer by Alan3354(69443)

Question 147886: four times the smallest of three consecutive odd intergers is five more than three times the largest.what is the sum of these consecutive odd intergers?
Click here to see answer by nerdybill(7384)

Question 147930: Solve: 2x+3-4x+5=2x+2-5-x
Click here to see answer by jim_thompson5910(35256)

Question 147926: Solve the following equation for y, showing all work.
Ln (y) � Ln (y-4) = Ln (2)
Click here to see answer by Fombitz(32388)

Question 147929: Write the following as one logarithm with a coefficient of 1:
2log a + log b – 3log c – log d

Click here to see answer by scott8148(6628)

Question 147945: please solve
4/12=n/26 n=?
Click here to see answer by mangopeeler07(462)

Question 147993: ok im struggleing with this so is every one else here is the question
a/0.6 = 3a + 2
Click here to see answer by nerdybill(7384)

Question 147994: Solve and check for X:
(x/12)-(1/6)=[(2x-7)/12]
Click here to see answer by jim_thompson5910(35256)

Question 148106: 2x/5-x/3=4

Click here to see answer by jim_thompson5910(35256)

Question 148118: If
(2x+1)(x-5)
--------- = 0,then x=
x+3
Click here to see answer by stanbon(75887)

Question 148118: If
(2x+1)(x-5)
--------- = 0,then x=
x+3
Click here to see answer by mangopeeler07(462)

Question 148118: If
(2x+1)(x-5)
--------- = 0,then x=
x+3
Click here to see answer by checkley77(12844)

Question 148129: (v-1)/(v+3) = (v+3)/v
v=?
Click here to see answer by jim_thompson5910(35256)

Question 148111: Having problems simplifying (-R2/R2CS+1)/R1. Any assistance in the explanation would be greatly appreciated.
Click here to see answer by stanbon(75887)

Question 147545: When using the ramainder theorem and the divosr of the form x + b, what is the value used in f(x) to define the value of the remainder?
a. b
b. 0
c. -b
d. You have to know the value of b first
Click here to see answer by oscargut(2103)

Question 148205: Which of the following represents the numerical solution of: log2((4^2)(2^3)
a. 5
b. 12
c. 7
d. There is no numerical solution; this expression cannot be resolved

Click here to see answer by jim_thompson5910(35256)

Question 148206: Which of the following is a logarithmic function?
a. f(x) = x^2
b. L(t) = 1 - e^-t
c. g(q) = q^-2
d. R(x) = 4 ln(x)

Click here to see answer by jim_thompson5910(35256)

Question 148207: If log a ≈ 0.250 and log b ≈ 0.644, then log b/a ≈
a. 2.576
b. 0.161
c. 0.394
d. There is insufficient information for a meaningful answer

Click here to see answer by jim_thompson5910(35256)

Question 148209: What is the domain of standard exponential functions?
a. x (0, ∞)
b. x (-∞, ∞)
c. x [0, ∞)
d. x (0, 1) (1, 2) (2, 3) (3, 4) (4, 5) .....

Click here to see answer by jim_thompson5910(35256)

Question 148211: Determine x for 102x + 1 = 100 x.
a. x = -1
b. x = 2
c. x = 0
d. No solution

Click here to see answer by Alan3354(69443)

Question 148212: Determine x for 10^2x + 1 = 100^x.
a. x = -1
b. x = 2
c. x = 0
d. No solution

Click here to see answer by Alan3354(69443)

Question 148219: e^ln(3) =
s. 1
b. 2
c. 0
d. e

Click here to see answer by Alan3354(69443)

Question 148218: If logbM = logaM / logab, then this is called:
a. the change of base property.
b. shrinkage.
c. the zero-sum property.
d. the log-quotient property.

Click here to see answer by Alan3354(69443)

Question 148217: Remember, a logarithm is:
not to be taken lightly.
an inverse function.
a rational function.
an exponent.

Click here to see answer by Alan3354(69443)

Question 148216: Which of the following cannot be a base for exponential and logarithmic functions?
0.1
π
1
e

Click here to see answer by Alan3354(69443)

Question 148216: Which of the following cannot be a base for exponential and logarithmic functions?
0.1
π
1
e

Click here to see answer by jim_thompson5910(35256)

Question 148245: Find two numbers whose sum is 50 and difference is 12
Click here to see answer by mangopeeler07(462)

Question 148261: Factor by any means possible- the way we understand is that the end result should look like this? (x-2) (x-2)
5a^2b^2c-15abc^2
Click here to see answer by Alan3354(69443)

Question 148285: one canned juice drink is 15% orange juice another is 10% orange juice, How many liters of each should be mixed together in order to get 5L that is 12% orange juice
Click here to see answer by edjones(8007)

Question 148310: 3x + 4 = 4x -5
3x +4-4= 4x-5-4
3x=4x-1
3x=4x-1
3 = 3
3x=3x
3 =3
x=3
I know i'm doing somthing wrong. I think i miss a step.

Click here to see answer by jim_thompson5910(35256)

Question 148435: i need help with this equation:
Click here to see answer by stanbon(75887)

Question 148430: Two angles of a triangle measure 21 degrees and 86 degrees. What is the measure of the third angle?
Could you please show how you got it.
Thank you
Click here to see answer by stanbon(75887)

Question 148473: Factor the following expressions completely:
a. x^3-4x=0
b. 2x^2+7x-15=0

Click here to see answer by mangopeeler07(462)

Question 148471: Divide and simplify:
y^2+y+10/2y-4 divided by y^2-3y-10/y-2

Click here to see answer by mangopeeler07(462)

Question 148495: Solve the following equations:
a: x^3-4x=0
b: 2x^2+7x-15=0
Click here to see answer by jim_thompson5910(35256)

Question 148494: Factor the following expressions completely:
a: x^2-2x-24
b: 2x^2y-32y
Click here to see answer by jim_thompson5910(35256)

Question 148470: Add and simplify:
1/x-1 - 4/x^2-1 + 2/x+1
Find the product:
(3x-7)(2x+4)

Click here to see answer by mangopeeler07(462)

Question 148474: Solve the formula:
P=A/1+ar solve for r
Solve the equation:
1/x-2 - 1/x+2 = 1/15

Click here to see answer by vleith(2983)

Question 148356: ln(e^-3) =
a. 1
b. -2
c. e^-2
d. There is no numerical solution; this expression cannot be resolved

Click here to see answer by Fombitz(32388)

Question 148584: I hope I put the this problem in the right algebra field:
It seriously have problem with this equation:
Q= 0.001744*12*h^(2/3)+ 0.00091*h^(5/3)
I must get result in form:
h=...?
I got so far:
b*x^5 + a*x^2 - Q = 0 where x=h^(1/3) and a,b are coefficients
Now, I don't know how to contiune!
Help me, please!!!!
Click here to see answer by scott8148(6628)

Question 148617: How would i write this as an equation. Please don't sovle it for me. I just want to know how i would write it. Thank you
A car rental company has two rental rates. Rate 1 is $72 per day plus $0.16 per mile. Rate 2 is $144 per day plus $0.08 per mile. If you plan to rent for one week, how many miles would you need to drive to pay less by taking Rate 2?
Click here to see answer by scott8148(6628)

Question 148661: An experienced accountant can balance the books twice as fast as a new accountant. Working together it takes the accountants 10 hours. How long would it take the experienced accountant working alone?

Click here to see answer by checkley77(12844)

Question 148639: soybean meal is 18% protein; cornmeal is 9% protein. How many pounds of each should be mixed together in order to get 360-lb mixture that is 13% protein?
Click here to see answer by checkley77(12844)

Question 148666: Jeff takes 5 hr longer to build a fence than it takes Bill. When they work together, it takes them 6 hours. How long would it take Bill to do the job alone?

Click here to see answer by checkley77(12844)

Question 148731: 31. Write the decimal equivalent, using the bar notation. 2/9
10. Subtract. 6 3/10 - 4 11/15

18. Find the area of the shaded part in the figure. Use 3.14 for PIE and round your answer to one decimal place. It is a circle inside of a square with each side being 15ft.
21. Complete the statement, using the symbol < or >.
15/17 __ 0.815

Click here to see answer by stanbon(75887)

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, 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