Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 102919: Jill has $3.50 in nickels and dimes. If she has 50 coins, how
many of each type of coin does she have?
Click here to see answer by checkley75(3666)

Question 102924: Solve each of the following systems by using either addition or substitution. If a unique solution does not exist, state whether the system is dependent or inconsistent.
10x+2y=7
y=-5x+3
Click here to see answer by Fombitz(32388)

Question 102923: Solve each of the following systems by substitution.
4x-12y=5
-x+3y=-1
Click here to see answer by jim_thompson5910(35256)

Question 102788: Having trouble solevin: 3 less than the quotient of a number and 7 is 6.
Click here to see answer by ankor@dixie-net.com(22740)

Question 102916: Find 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 elima(1433)

Question 103022: Please help me solve this problem
The product of 6 and 9 times the number is the same as the difference of 10 times the number and 2
Click here to see answer by doukungfoo(195)

Question 103052: My text book is Glenco PreAlgebra page 95. My question is with problem #3. I am suppose to write the rule for the pattern 63, 48, 35, 24. I know it is n-15, then n-13, then n-11 but I can't figure out how to write a rule that will work for the whole pattern. thanks.
AN
Click here to see answer by stanbon(75887)

Question 103044: Please help me solve -7/8 - x = -7/12?
Click here to see answer by doukungfoo(195)

Question 103084: I need to translate this problem into an equation........
there are twelve people on the jury. THere are 4 more men than women. How many men are there?
Click here to see answer by oberobic(2304)

Question 103081: The attendance at a baseball game was 400 people.Student tickets cost $2 and adult tickets cost $3 Total ticket sales were $1050. How many tickets of each type were sold ?

What is the multiple step equation ?
Click here to see answer by oberobic(2304)

Question 103109: 24=49/w
Click here to see answer by stanbon(75887)

Question 103127: 2-x/3=x/2 answer is said to be 12 however i have to show my work and i have no idea how the answer became 12. i do have other problems but if this one can be explained then i will be able to do the rest on my own.
Click here to see answer by stanbon(75887)

Question 103116: 28 x .0250+K
___________ =.0250
28+4
Click here to see answer by edjones(8007)

Question 103199: A cashier's drawer has some $5 bills, some $10 bills, and some $20 bills. There are 15 bills worth a total of $185. How many $5 bills, $10 bills, and $20 bills are there?
Click here to see answer by checkley75(3666)

Question 103226: Confusing fraction equation of
Solve if possible
1/4(60 + 16s) = 15 + 4s
I get
15 + 4s = 15 + 4s
and then not sure where to take it after this
Click here to see answer by edjones(8007)

Question 103223: I need help in solving this equation
solve if possible...
8 - 9t = 21t - 17
I get
- 9t = -9
-t = 1
Click here to see answer by edjones(8007)

Question 103255: 2. the gym is 21 years newer than the auditorium. the gym is also one-fourth as old as the auditorium. how old is each building
3. two numbers differ by 57. theier sum is 185. find the numbers.
4. one number is four times another number. the larger number is also eighty-seven more than the smaller number. find the numbers
11. the height of a flag pole is three-fourth the height of the school. the difference in the heights is 4.5 m. what is the hieght of the school

Click here to see answer by elima(1433)

Question 103319: Solve by the elimination method.
3x-2y=22
5x+4y=0
What is the solution of the system? _______ answer should be an ordered pair
Click here to see answer by HyperBrain(694)

Question 103320: Solve the following system by elimination.
1/3x + 1/2y = -3
1/3x + 3y = -8
the solution is ____ should be an ordered pair
Click here to see answer by stanbon(75887)

Question 103320: Solve the following system by elimination.
1/3x + 1/2y = -3
1/3x + 3y = -8
the solution is ____ should be an ordered pair
Click here to see answer by HyperBrain(694)

Question 103321: w+8=-3
Click here to see answer by JP(22)

Question 103273: solve the formula for the perimeter of a regtangle p = 2(L+w) for the with w.
Click here to see answer by JP(22)

Question 103315: WRite the standard form of the equation of the line through this pair of points. Write the equation using only integer cofficients; (9,-1) and (-5, 10).
The equation is ___x + ____y = _____
Click here to see answer by HyperBrain(694)

Question 103339: How many doubles teams can a tennis coach make with a ten player squad?
Click here to see answer by HyperBrain(694)

Question 103249: the diffence between the length and width of one side of a rectangular cereal box is 9.8cm if the width is 21.8cm what is the length in cm?
how many centimeters long is the perimeter of the rectangle?
Click here to see answer by HyperBrain(694)

Question 103243: the differnce between the length and width of one side of a rectangular cereal box is 9.8cm If the width is 21.8cm what is the lenght in cm.

how many centimeters long is the perimeter of the rectangle?

Click here to see answer by BurningFlame_marc(77)

Question 103271: solve the formula for the perimeter of a regtangle p = 2(l+w) for the with w.
Click here to see answer by HyperBrain(694)

Question 103509: 2x^2+6x+9=0 (finding the value of the discriminant) How many real solutions are there of this equation? I have no idea how to do this question. Please help me
Click here to see answer by stanbon(75887)

Question 103512: 3(x=4)-6x = 2(4-2x)
Click here to see answer by checkley75(3666)

Question 103516: 3(x+4)-6x=2(4-2x)
Click here to see answer by checkley75(3666)

Question 103553: 3-4q=10q+10
Click here to see answer by stanbon(75887)

Question 103556: 1. 4y-9=15
2. 6x+7=-5
3. -9t+2=56
4. -69=7v-6
5. 35=-2x-15
6. 4-3n=43
7. 12-5u=-48
8. -27=20w=73
9. 13=5-8m
10. 11r+60=16
11. y-24=-7
12. 23-x=13
13. -67=6x-1
14. -4e-9=19
15. -8=32-5q
16. 6=10k=256
17. -100=12t-4
18. 36-x=-36
objective:to solve equations of the form ax=b=c where "a" is an interger (solutions are integers).
Click here to see answer by jim_thompson5910(35256)

Question 103480: Last year Chu found 3 more customers than Ralph found.This year Chu found 2 times as many customers as he found last year.Let r= the number of customers ralph found last year.write an expression for the numberof customers chu found this year.
Click here to see answer by oberobic(2304)

Question 103575: How would you solve x/3+2=-5 ?
Click here to see answer by edjones(8007)

Question 103579: Solve the following equations for the variable X
3.5tpx=r
4xz=p
Click here to see answer by edjones(8007)

Question 103425: Solve each of the following systems by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent.

2x+3y=1
5x+3y=16
Click here to see answer by ankor@dixie-net.com(22740)

Question 103722: The reason I can't give you more information as to what section in the chapter or the problem #, the teacher gave us the worksheet she made on her own. I just need help in understanding just exactly how to set up this problem. Thank you most sincerely for your help!
The word problem reads:
After dieting and exercising for several months, Jared now weighs 20% less than he did originally. If Jared now weighs 180 pounds, how much did he weigh originally?
I know I make:
X = Original weight
(x-.20x)= Amt. of loss the 20%
180 lbs = Current weight
Do I set up the equation as:
x-(x-.20x) = 180
x-x-.20x = 180
+.20 +.20
________ ______
?x = 180.20

"Is the problem set up correctly? Do I count 3x?; or Do I count 2x? "Please" explain in a very simple explanation, so that I understand."

Thank you most kindly for your help!

Click here to see answer by scott8148(6628)

Question 103786: can you show me how to do this problem..
10x-45=7x-60
Click here to see answer by jim_thompson5910(35256)

Question 103774: 2-3/4z=1/8z+9
Click here to see answer by jim_thompson5910(35256)

Question 103773: 11x-15-3x=-(x-3)

Click here to see answer by jim_thompson5910(35256)

Question 103715: 2/3a - 3/4 = 3/4a
Click here to see answer by jim_thompson5910(35256)

Question 103745: can you please help me slove this equation: -8-2*(-9)-4(5-3)=2

Click here to see answer by jim_thompson5910(35256)

Question 103903: I need to solve this to its simplified form, can you help please?
x + 1 _ x - 4 = 1 - x
4 3 2

Click here to see answer by jim_thompson5910(35256)

Question 103949: Hi i really need your help really badly.I have the foggiest i dean on how to solve this equation i dont know where to start can you help me please.thanks very much!!
Heres the equation:6f-8f=+4{f-3}= -2{f+4}
thanks
Click here to see answer by jim_thompson5910(35256)

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