Questions on Algebra: Equations answered by real tutors!

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Question 224379: If Line M is perpendicular to Line N and Line N is perpendicular to Line R, how is Line M related to Line R?
a) parallel
b) perpendicular
c) cannot tell from information given
Again please please help. Thank you!!!
Click here to see answer by jim_thompson5910(28593)

Question 224380: How much greater is the boiling point(-29) then melting point(-97)
I did this on a test and i continuisly got it wrong,at first i worked it out like this...
-97-(-29) I changed the - between 97 and 29 to a + (that is what my teacher said to do) and i added 29+97 and ended up with 126,of corse I knew that it was still a negitive number because -29 is larger then -97 so I ended up with
-126....
PLEASE HELP ME IM AM SO CONFUSED!!!!!!!! ANYONE PLEASE!!!!!!!
Click here to see answer by Alan3354(30993)

Question 224415: 4g+7=5g-1-g
Click here to see answer by rapaljer(4667)

Question 224414: 6y+9=3(2y+3)
Click here to see answer by rapaljer(4667)

Question 224403: 4b-1=-4+4b+3

Click here to see answer by rapaljer(4667)

Question 224426: 15x-3=3x-15
Click here to see answer by rapaljer(4667)

Question 224421: How do you solve 9:15= x:45
Click here to see answer by rapaljer(4667)

Question 224433: 11m=187
Click here to see answer by checkley77(12569)

Question 224369: Tom’s uncle owns a triangular piece of land. The perimeter fence that surrounds the land measures 378 yards. The shortest side is 30 yards longer than one-half of the longest side. The second longest side is 2 yards shorter than the longest side. What is the length of each side?
Click here to see answer by checkley77(12569)

Question 224367: A girl buys three apples and seven oranges for $4.56. If an orange cost .28 more than an apple, how much does each fruit cost?
Click here to see answer by checkley77(12569)

Question 224366: I have read this question over and over and I just don't understand it, help please!
The sum of the page numbers on facing pages of a book is 157; what are the pages numbers?
Click here to see answer by checkley77(12569)

Question 224357: Find the equation of the line through (4,3) perpendicular to the line 3x + y = 7
Click here to see answer by chibisan(131)

Question 224375: I need help with systems of equations....Find all the solutions of the follow systems of equations if possible. If a system has no solution, explain why it does not.
(A) 3X-Y=3
3X+Y=15
(B) 2X-Y=1
2Y-4X=3
(C) 2X-Y=1
2Y-4X=(-2)
Please help me understand these, Im lost!!! Thank you
Click here to see answer by LtAurora(115)

Question 224521: Here is the problem. Directions are to solve and check.
3m-(m+1)=6m+1
My work:
1st. 3m-1m-1=6m+1
2nd. 2m-1=6m+1
3rd. 2m-2m-1=-2m+1
4th. -1=4m+1
That is as far as I can get. I dont understand what else to do.

Click here to see answer by rapaljer(4667)

Question 223597: Find the indefinate integral of f(x)=5x - 3x^(2) + x(sqrt(x)) + 7e^(x)
Help with this problem would be much appreciated, Judy
Click here to see answer by Alan3354(30993)

Question 224600: Can you please simplify this equation for x:
10+bx=b-4
Thanks
Click here to see answer by drj(1380)

Question 224628: Solve the equation by first clearing the decimals
2.3x+9.2=23
Click here to see answer by drj(1380)

Question 224628: Solve the equation by first clearing the decimals
2.3x+9.2=23
Click here to see answer by mestrydilip(12)

Question 224696: -6x-9=-2x-25
Click here to see answer by checkley77(12569)

Question 224696: -6x-9=-2x-25
Click here to see answer by jim_thompson5910(28593)

Question 224692: 8+5x=7x+2
Click here to see answer by jim_thompson5910(28593)

Question 224691: x+10=6x+45
Click here to see answer by jim_thompson5910(28593)

Question 224688: -3x-4=-5x-22
Click here to see answer by jim_thompson5910(28593)

Question 224679: 2x=5y=10
and
4x+3y=9
Click here to see answer by checkley77(12569)

Question 224658: how do you solve: r/-8 =-3/8
Click here to see answer by ankor@dixie-net.com(15649)

Question 224746: Let f(x)=(x-2)^2.Find x such that f(x)=25
Click here to see answer by drj(1380)

Question 224747: Determine the x-intercepts of
Click here to see answer by LtAurora(115)

Question 224874: steps to solve
3y-2(y+19) = 9y-3(9-y)
Click here to see answer by drj(1380)

Question 224915: Solve this simultaneous equation:
y=5-4x²
y+3x=6
Please help
Click here to see answer by drj(1380)

Question 225096: 4n+3n+5=47
Click here to see answer by jim_thompson5910(28593)

Question 225097: 3n+2n+1=-4
Click here to see answer by jim_thompson5910(28593)

Question 225207: how to solve 36-4c-3c=22
Click here to see answer by LtAurora(115)

Question 225314: My question is: Nine times the first of two consecutive odd integers equals seven times the second. Find the integers. And which lesson do I click on to get help with this type of problem. My instructor lost me last week and I am barely passing. We are moving onto Geometry equations. I will need help with that as well. Thank you
Click here to see answer by scott8148(6628)

Question 225393: Solve for x
5(x-100)=2(x-100)+21

Click here to see answer by rfer(12657)

Question 225411: how do i solve this equation x-{x-[x-(x-1)]}
what rule do i use please help?
Click here to see answer by rfer(12657)

Question 225410: i need help sloving this equation |8x-12|-4=14
Click here to see answer by solver91311(16877)

Question 225473: b+24=19

Click here to see answer by drj(1380)

Question 225508: how do uyou graph y - 3 = -2x
Click here to see answer by checkley77(12569)

Question 225687: devon purchased tickets to an air show for 7 adults and 2 children...the total cost was 92.00 the cost of the childs ticket was 8.00 less than the cost of an adults ticket...find the price of an adults ticket and a childs ticket?
Click here to see answer by checkley77(12569)

Question 225694: linda and dave leave simultaneously from the same starting point biking in opposite directions..linda bikes at 5 miles per hour and dave bikes at 8 miles per hour...how long will it be until they are 20 miles apart from each other?
Click here to see answer by rfer(12657)

Question 225684: how can 42,000 be invested, part at 4% annual simple interest and the remainder at 10% annual simple interest, so that the interest earned be the two accounts is equal at the end of the year?
Click here to see answer by checkley77(12569)

Question 225782: a bus traveling at the rate of 30 miles per hour left the city at 11:45 a.m. A car following the bus at 45 miles per hour left the city at noon.At what time will the driver catch up with the bus?
Click here to see answer by rfer(12657)

Question 225828: Good morning!
Please help me with this. Solve the equation and then your the answer.
2(y+8)=3(y-6)
Click here to see answer by ankor@dixie-net.com(15649)

Question 225868: If a certain number is added to the numerator and denominator of 715, the result is 1/3, Find the number?
Click here to see answer by Alan3354(30993)

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, 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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