Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 115127: 4b+2b-5b=
(5y2-4y)+(2y2+6y-9)=
the twos after they's are squared
Click here to see answer by jim_thompson5910(28503)

Question 115133: Find two negative consecutive odd integers such that their product is 63.
Click here to see answer by edjones(7569)

Question 115141: How do you solve this equation: 5(4n-4)= -60 ?
Click here to see answer by jim_thompson5910(28503)

Question 115156:
My son needs help solving this equation: 1/2(5m+2)=1/3(7m+12). I am helping him with his homework, and I am unable to explain that equation.. Thanks
Click here to see answer by checkley71(8403)

Question 115167:
-3(x+1)=2(x-8)+3
Click here to see answer by checkley71(8403)

Question 115171: 6(2-x)=4x
Click here to see answer by checkley71(8403)

Question 115171: 6(2-x)=4x
Click here to see answer by MathLover1(6618)

Question 115171: 6(2-x)=4x
Click here to see answer by jim_thompson5910(28503)

Question 115173: Translate into an algebraic equation.

6 times a number is 14 more than that number

Click here to see answer by checkley71(8403)

Question 115173: Translate into an algebraic equation.

6 times a number is 14 more than that number

Click here to see answer by bucky(2189)

Question 115173: Translate into an algebraic equation.

6 times a number is 14 more than that number

Click here to see answer by MathLover1(6618)

Question 115176: Ching leaves San Francisco and travels toward Los Angeles at 50 miles a hour. An hour later Phil leaves Los Angeles and travels toward San Francisco at 60 miles a hour. If the two cities are 380 miles apart, how many hours will it take for Ching to meet Phil?
Please explain!
Click here to see answer by checkley71(8403)

Question 115178: Is this correct?
An 800 g solution of acid and water contains 128 g of acid. What percent of the solution is acid? 16%
Click here to see answer by checkley71(8403)

Question 115179: A service station wishes to mix 40 L of a 78% antifreeze solution. How many litres of a 75% solution and a 90% solution should be used in forming the mixture? ( using two unknowns, write two equations and solve.)
Click here to see answer by checkley71(8403)

Question 114916: The graph and table below show the income for a local company. Use this information to predict the income in the year 2005.
Year Total Income (in millions)
1980 $6.3
1985 $21.5
1990 $39.8
1995 $57.4
2000 $65.3
Can someone please help me with this one, I am baffled. I add them all together right? Then what?

Click here to see answer by ankor@dixie-net.com(15632)

Question 115204: x+7=11
Click here to see answer by jim_thompson5910(28503)

Question 115206: 5x/7-6x/5=3/35
Click here to see answer by jim_thompson5910(28503)

Question 115211: A solar collector is 2.5m long and 2.0m wide. It is held in place by a frame of uniform width around the edge of the collector(covering a little of the collector like a frame covers a little of a picture.) If the exposed part of the collector(area inside the frame) is 4 sq. meters, what is the width of the frame?
With the above info. write an equation that simplifies to be a quadratic equation. Solve the quadratic using the quadratic formula.
PLEASE I NEED HELP!!!!!!
Click here to see answer by scott8148(6628)

Question 115205: Ricardo is 4 years less than twice as old as his sister. The sum of their ages is 20. How old is Ricardo?
Click here to see answer by HyperBrain(694)

Question 115277: Put the following equations into y = mx + b form:
a) 6y – 3x = –2

Click here to see answer by jim_thompson5910(28503)

Question 115250: Solve the equation 8x^2-10x+3=0. x=?
Click here to see answer by jim_thompson5910(28503)

Question 115276: Due to the ongoing tension in the Middle East, Mobil begins charging people to line up at the pump. It costs $1.50 just to drive in and $2.75 for every gallon of gas that you pump. Write a linear equation that shows how much money you spend at Mobil in relation to how many gallons of gas you pump. (Hint: you can begin by using the table method).
Click here to see answer by stanbon(57231)

Question 115275: The minute hand on Big Ben is 10 feet long and exactly touches the outside edge of the clock. When the clock reads 9:00, what portion of the circle is between the minute hand and the hour hand (going clockwise), and what is the area of that portion in feet?

Click here to see answer by stanbon(57231)

Question 115168: Find the mean and the median.
-2,-7/4,3/4,4,9
Click here to see answer by elima(1433)

Question 115170: Allen bought 20 stamps at the post in 37 cents and 20 cents denominations. If the total cost of the stamps was $7.06, how many 37 cents did Allen buy?
Click here to see answer by elima(1433)

Question 115316: The sum of three consecutive odd integers is 201. Find the integers.
Click here to see answer by stanbon(57231)

Question 115317: Is this correct?
9/16 converted to a percent is 0.5625=56 percent
Click here to see answer by stanbon(57231)

Question 115315: Ricardo is 4 years less than twice as old as his sister. The sum of their ages is 20. How old is Ricardo?
Click here to see answer by stanbon(57231)

Question 115314: Anna has 12 bills in her wallet, some $5 and some $10. The total value of the bills is $100. How many of each bill does Anna have?
Click here to see answer by stanbon(57231)

Question 115313: 28x-2x(10x-0.365)=7x+0.035
Please, please explain!
Click here to see answer by stanbon(57231)

Question 115338: Rewrite the equation –9x – 10y = –60 as a function of x.

Click here to see answer by aka042(26)

Question 115336: Given f(x) = –2x – 4, find f(2).

Click here to see answer by aka042(26)

Question 115181: a boat travels 24 mi upstream in 3hrs. It then takes 3 hrs to go 36 mi downstream. Find speed of boat in still water and the speed of the current. (Using two unknowns, write two equations and solve.)
Click here to see answer by scott8148(6628)

Question 115337: Solve the system by graphing.
x + 2y = 4
x + 2y = –2

Click here to see answer by stanbon(57231)

Question 115337: Solve the system by graphing.
x + 2y = 4
x + 2y = –2

Click here to see answer by Kelsie(2)

Question 115333: Graph the inequality.
3x + y is less than or equal to 5

Click here to see answer by Kelsie(2)

Question 115334: The sum of two numbers is 74. The second is 2 more than 3 times the first. What are the two numbers?
Click here to see answer by aka042(26)

Question 115203: Anna has 12 bills in her wallet, some $5 an some $10. The total value of the bills is $100.How many of each bill does Anna have?
Click here to see answer by scott8148(6628)

Question 115324: One number is 12 more than another. The sum of the smaller number and twice the larger number is 39. Find the larger number.
Click here to see answer by scott8148(6628)

Question 115332: Graph f(x) = –x – 2.
Click here to see answer by checkley71(8403)

Question 115327: Adult tickets for a play cost $6 and child tickets cost $1. If there were 32 people at a performance and the theater collected $117 from ticket sales, how many children attended the play?
Click here to see answer by scott8148(6628)

Question 115329: Solve the system by graphing.
3x + y = –1
9x + 3y = –3

Click here to see answer by checkley71(8403)

Question 115328: Solve the system by substitution.
3x – y = –7
x + y = –9

Click here to see answer by checkley71(8403)

Question 115325:
Given f(x) = x2 + 2x + 1, find f(0).
Click here to see answer by checkley71(8403)

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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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