Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 180904: Please help me solove this equation: -6\x/-27+3\x
Click here to see answer by Mathtut(3670)

Question 181009: can you solve a variable in a expression ?
Click here to see answer by Mathtut(3670)

Question 181029: 2x - 5squareroot x + 2 =0
Click here to see answer by edjones(8007)

Question 181056: Your weekly paycheck is 15 percent less than your coworker's. Your two paychecks total 680. Find the amount of each paycheck.
coworkers pay check is:
my pay check is:
Click here to see answer by Mathtut(3670)

Question 181053: Express the sum of 3 consecutive integers in terms of the first integer n of them.

Click here to see answer by Mathtut(3670)

Question 181058: Suppose that you are taking a course that has 4 tests. The first three tests are for 100 points each and the fourth test is for 200 points. To get an B in the course, you must have an average of at least 80 percent on the 4 tests. Your scores on the first 3 tests were 83, 75, and 91. What is the minimum score you need on the fourth test to get an B for the course?
Click here to see answer by josmiceli(19441)

Question 181057: A rectangular room is 1.2 times as long as it is wide, and its perimeter is 33 meters. Find the dimension of the room.
the length is:
in meters
and the width is:
in meters
Click here to see answer by vleith(2983)

Question 181054: Given a rectangle that is 43 cm longer than it is wide. Express the perimeter (in cm) of a rectangle in terms of its width w.
Click here to see answer by checkley77(12844)

Question 181102: Can you show me step by step how to complete the square?
1.) 3t^2 + 24t-13
2.) 4s^2+s+2

Click here to see answer by ankor@dixie-net.com(22740)

Question 181122: 2y^2 + 1 = 2y
Click here to see answer by solver91311(24713)

Question 181100: z/z +3 = 3z/5z - 1
Click here to see answer by solver91311(24713)

Question 181155: I need help solving the equation
Click here to see answer by Alan3354(69443)

Question 181184: My son & I cannot find an answer to a problem posed by his teacher for this
chapter. She wants to know the arithmetic sequence for "t=a+(n-1)d".
Thank you.
Click here to see answer by scott8148(6628)

Question 181241: I'm working on some of my homework here is the question.. 3-i/4+2i= here are my choices..7+i/10 1+i/2 -1-i/2 1-i/2
any help would be appreciated, thanks!
Click here to see answer by Mathtut(3670)

Question 181123: z/z +3 = 3z/5z - 1
Click here to see answer by HyperBrain(694)

Question 181245: x^-1/3x^3/4 over x^1/4= here are my choices: 1, x^1/6, x^1/2, or 1/x^1/2
Click here to see answer by josmiceli(19441)

Question 181297: what's a mathematical equation
Click here to see answer by solver91311(24713)

Question 181300: solve for the variable and check your answer. Noninteger answers may be left in fractional form or decimal form.
20-1/3x=1/2x
Click here to see answer by Mathtut(3670)

Question 181236: Hi.
May I have some help solving each system graphically if possible?
{3x-2y=0
2x+3y=0
thanks
H.C.
Click here to see answer by carter6949(26)

Question 181353: Use Substitution to solve each system of equations. state whether it has no solution or infinitely many solutions. x=4y+5 x=3y-2
Click here to see answer by Fombitz(32388)

Question 181355: Use Substitution to solve each system of equations. state whether it has no solution or infinitely many solutions. y=2x+3 y=4x-1
Click here to see answer by ankor@dixie-net.com(22740)

Question 181381: Kyle has two job offers as a car salesman. At one dealership he will receive $600 per monthe plus a commission of 2% of the total price of the automobiles he sells. At the other dealership, he will receive $1000 per month plus a commission of 1.5% of his total sales. What is the total price of the automobiles that Kyle must sell each month to make the same income from either dealership?
Click here to see answer by Mathtut(3670)

Question 181420: y-10=7y+8
Click here to see answer by eperette(173)

Question 181415: Hi.
I'm checking to see if I solved this problem correctly.
Solve each system by by method.
{2/3x-1/4y=-8
1/2x-3/8y=-9
thanks
H.C.

Click here to see answer by eperette(173)

Question 181414: Hi.
I'm checking to see if I solved this problem correctly.
Solve each system by addition, if possible
{2y-3x=-13
3x-17=4y
thanks
H.C.
Click here to see answer by eperette(173)

Question 181380: Use Subtraction to solve each system of equations.If the system does not have exactly one solution, state whether it has no solution or infinitely many solutions. x-3y=0 & 3x+y=7
Click here to see answer by eperette(173)

Question 181406: The diameter of a cylindrical can of motor oil is 3.5 (in). The height of the can is 6.5 in. Approximately how many cubic inches of oil will the can hold?
Click here to see answer by Alan3354(69443)

Question 181379: Use Subtraction to solve each system of equations.If the system does not have exactly one solutions, state whether it has no solution or infinitely many solutions. 2x+3y=1 & -3x+y=15
Click here to see answer by HyperBrain(694)

Question 181461:
Click here to see answer by Mathtut(3670)

Question 181413: Hi.
I'm checking to see if I solved this problem correctly.
Solve each system by substitution, if possible
{2x-y=-21
4x+5y=7
thanks
H.C.
Click here to see answer by vleith(2983)

Question 181479: Given a rectangle that is 43 cm longer than it is wide. Express the perimeter (in cm) of a rectangle in terms of its width w.
Click here to see answer by vleith(2983)

Question 181478: The radiator in a car is filled with a solution of 65 per cent antifreeze and 35 per cent water. The manufacturer of the antifreeze suggests that for summer driving, optimal cooling of the engine is obtained with only 50 per cent antifreeze. If the capacity of the raditor is 3 liters, how much coolant (in liters) must be drained and replaced with pure water to reduce the antifreeze concentration to 50 per cent?
Click here to see answer by Mathtut(3670)

Question 181585: suppose you earn $8.50/h at a bakery. From your first paycheck you determine that $ 2.15/h is withheld for taxes and benefits. You work x hours during a five-day week and you spend $ 3.75 eack day for lunch.
Write an equation for your weekly earning after taxes, benefits and lunch expenses.
in this situation what does the slope and the y represent?
how many hours must you work to earn $ 120 after taxes, benfits and lunch expenses?

Click here to see answer by Mathtut(3670)

Question 181618: Hi.
I need some help checking the following problem about exponents.
Simplify each expression. Write all answers without using negative exponents.
(a^2b^3c^4d/ab^2c^3d^4)^-3
thanks
H.C.
Click here to see answer by Mathtut(3670)

Question 181619: Hi I need some help with the following problem .
Solve each system by any method.
{2/3x-1/4y=-8
1/2x-3/8y=-9
Click here to see answer by HyperBrain(694)

Question 181659: which of the ordered pair satisfies the equation
y= 3x-4 (1.5,-1.5) (0.5,-2.5) (2.5, 2.5)

Click here to see answer by stanbon(75887)

Question 181676: the cost of placing a classified ad in teh newspapers follow
Daily Gleaner: C=10n + 25
Daily standrad: 15n +10
where C is the total cost and n is the number of days for which the ad is run
a) Find the missing element in the ordered pair (3,__) that satisfies both equations and is in this form (n, C)
b) What number of days give equal costs for running the ad in each newspaper?
c) What is the total cost of running the ad for this number of days in either newspaper?
thanks
Click here to see answer by Mathtut(3670)

Question 181687: a) An infinite number of ordered pairs, including (0,1) (1,0) and (2,-1) satisfis both equations. Explain why.
x+y=1
y=2x+3
b) no ordered pair satisfies both equations. Expain why
y=2x+1
y=2x+3
thankyou
Click here to see answer by Mathtut(3670)

Question 181696: sorry i made a typing error before
An infinite number of ordered pairs, including (0,1) (1,0) and (2,-1) satisfies both equations. Explain why.
x+y=1
2x+2y=2
Click here to see answer by Alan3354(69443)

Question 181749: If refinishing your basement at a cost of $45,729 would add $21,688 to the resale value of your home, what percent of your cost is recouped?
Click here to see answer by Mathtut(3670)

Question 181751: At a local Wendy's, a survey showed that out of 9,200 customers eating lunch, 1,000 ordered Diet Pepsi with their meal. What percent of customers ordered Diet Pepsi?
Click here to see answer by Mathtut(3670)

Question 181761: Hi.
I'm having trouble figuring out the following problem.
Solve for r:
A=p+prt
thanks
Haley
Click here to see answer by solver91311(24713)

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