Questions on Algebra: Equations answered by real tutors!

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Question 372267: using only algebra find the solution... Melissa earns 10% more per hour than her friend Jon. Louise makes 25% less per hour than Jon. What is the ratio of Louise's salary to Melissa's
Click here to see answer by robertb(5830)

Question 372395: 5(w-7)=-15
Click here to see answer by rmcaz79(8)

Question 372439: Solve the formula for the indicated variable
P=a+b+4c, for a
Click here to see answer by user_dude2008(1862)

Question 372449: Here is the question: http://img80.imageshack.us/img80/8008/rrrzu.jpg
Click here to see answer by user_dude2008(1862)

Question 372391: Simplify 7x-2((4x-3y-2(x-7))
My solution:
7x-2((4x-3y-2(x-7))
=7x-2(4x-3y-(2x-14))
=7x-2(4x-3y-2x+14)
=7x-2(2x-3y+14)
=7x-(4x+6y-28)
=3x+6y-28
Click here to see answer by jim_thompson5910(35256)

Question 372344: Here is a word problem that I'm having trouble setting up and solving
While Michelle sat observing birds at a bird feeder, one fourth of the birds flew away when they were startled by a noise. Two birds left the feeder to go to another stationed a few feet away. Three more birds flew into the branches of a nearby tree. Four birds remained at the feeder. How many birds were at the feeder initially?
Click here to see answer by ankor@dixie-net.com(22740)

Question 372551: (5/y-3) = 1 + (y+7)/(2y-6)

Click here to see answer by Fombitz(32388)

Question 372498: M=3 What would the slope of a perpendicular line be? Show work please.
m=3
m= 3/1
m= -3
I'm lost.
Click here to see answer by Fombitz(32388)

Question 372584: 8s+9=7s+6
Click here to see answer by Fombitz(32388)

Question 372679: Can you tell me what the answer to this equation:
4(3X+2+3)=7X+3X-3
I got 11.5, am I correct? If not, how did you get the answer?
Click here to see answer by Fombitz(32388)

Question 372749: (3x-4) - (5x-8) = -(x+12) - 6x + 1 solve equation
Click here to see answer by Jk22(389)

Question 372729: the length of a rectangle is 50 meters. this is 6 meters more than twice the width. find the width
Click here to see answer by checkley79(3341)

Question 372613: (e^2x)-9(e^x)+14=0
Click here to see answer by Fombitz(32388)

Question 372809: having probvlems figureing out how to solve this problem
12.64+42.35x=5.34x+26.58
Click here to see answer by solver91311(24713)

Question 372773: x=4y+45 Solve the system using the substitution methon
2y+x=-9
Click here to see answer by rfer(16322)

Question 372821: 4 1/6 = r + 6 1/4 i got 1 12/13 is that right?
Click here to see answer by josmiceli(19441)

Question 372881: The length of a couch is 200 centimeters.This is 16 centimeters less than 3 times the width of a matching chair. how wide is the chair?
Click here to see answer by rfer(16322)

Question 373002: Can you help me solve this type of problem? -2/15 + p = -8/15
I need to understand the process so can you show your work and explain how you came to each step? Thank you so much for your help.
Click here to see answer by jim_thompson5910(35256)

Question 373047: one canned juice drink is 20% orange juice; another is 5% orange juice. how many liters of each should be mixed together in order to get 15L that is 13% orange juice?
Click here to see answer by josmiceli(19441)

Question 373061: y = kx(4-x), solve for x
Click here to see answer by Jk22(389)

Question 373108: Hi tutors.. :) Im having a problem with Algebra Number Problems. For example an equation like this : There are two numbers whose sum is 72. One number is twice the other. What are the numbers?

Also. There are three consecutive integers. the sum of the smallest and largest is 36.

I just dont get it:( Help please
Click here to see answer by nerdybill(7384)

Question 373174: 10x+7=77
what is x
Click here to see answer by SadieKhan(31)

Question 373175: are x<-5 and 2x>10 equivalent why or why not

Click here to see answer by Fombitz(32388)

Question 373358: last season, Jake and Jerome scored a total of 16 touchdowns.Jerome scored one more than twice the number of Jakes touch downs. How many did each score?
Click here to see answer by robertb(5830)

Question 373364: The cost of the gold bracelet was20.00 dollars more than three times the silver one.Together they cost 320.00dollars. How much did each cost?
Click here to see answer by robertb(5830)

Question 373387: If 48 divided by 7= 6 Rn, what is the value of n?
Click here to see answer by solver91311(24713)

Question 373536:
Its not 2 times x it's just 2x.
Click here to see answer by robertb(5830)

Question 373489: solve using any method (substitution, addition/subtraction, or multiplication). show work
x=-2y
3x+y=10
Click here to see answer by robertb(5830)

Question 373566: Solve:
x^3-2x ≤ 24 - 5x^2
Click here to see answer by Jk22(389)

Question 373447: 2x^2+11x-6=0 How do you complete the square of this problem

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

Question 373663: x^4-8x^2-20=0
Click here to see answer by ewatrrr(24785)

Question 373740:
Click here to see answer by Fombitz(32388)

Question 373809: find the slope of the line determined by the equation 2x=y
Click here to see answer by robertb(5830)

Question 373547: Tickets for a high school play are $3.00 each for students and $4.00 each for all others. Find the total money collected from ticket sales if 315 student tickets are sold out of a total of 518 tickets.
Click here to see answer by ankor@dixie-net.com(22740)

Question 373875: Expand(x-2)(x+3)

Click here to see answer by Fombitz(32388)

Question 373878: Factorise 3(x-2y)-7a(2y-x)
Click here to see answer by Fombitz(32388)

Question 373870: Expand and simplify(5p-4q+3r)(-1/6)
my solution:
(5p-4q+3r)(-1/6)
=-5/6p+2/3q-1/2r
Click here to see answer by Fombitz(32388)

Question 373810: find the equation of the line perpendicular to the line x =4 and passing through the point (4,2)

Click here to see answer by Fombitz(32388)

Question 373847: d=D(a+1)/24
Click here to see answer by Fombitz(32388)

Question 373804: Find all real/imaginary solutions to
q^2+6q-7=0

Click here to see answer by Fombitz(32388)

Question 373852: Write a linear equation to model the situation. You borrow $70 from
your brother. To repay the loan, you pay him $7 per week. Use w to
denote the number of weeks and y as the balance on the loan.
please i need help as soon a posible.
Click here to see answer by jim_thompson5910(35256)

Question 373839: -3 -4(t -5)=-2(t + 3) + 11
Click here to see answer by jim_thompson5910(35256)

Question 373959: Subtract 3x�+5x-1 from 7x�-x�+4x+6, leaving your answer in the simplest form.
Click here to see answer by Edwin McCravy(20054)

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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, 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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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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