Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 379322: How long does it take money to quadruple if it is invested at 10% compounded continously?
Click here to see answer by robertb(4012)

Question 379322: How long does it take money to quadruple if it is invested at 10% compounded continously?
Click here to see answer by mananth(12270)

Question 379327: One number is two more than a second number. Twice the first is 4 less than 3 times the second. Find the numbers.

Click here to see answer by stanbon(57410)

Question 379339: -0.5(8 - 4t) = 2(2 + t)
Click here to see answer by mananth(12270)

Question 379331: 5+4a=5a+2
solve eqautions with variables on both sides
Click here to see answer by tutorcecilia(2152)

Question 379321: If $8000 is invested at 12% compounded quarterly how much is in the account after 20 yrs?
Click here to see answer by robertb(4012)

Question 379336: 2 (5h - 1) = 3(4h +2)
Click here to see answer by jim_thompson5910(28598)

Question 379435: 11(x-6)-4(x+3)=4(x-3)
Click here to see answer by jim_thompson5910(28598)

Question 379472: how do i do this problem. please and thank you
(2.5 x 10^4) x (6 x 10^3)
Click here to see answer by Fombitz(13828)

Question 379475: how would I solve m^8/m^3
please and thank you
Click here to see answer by Fombitz(13828)

Question 379309: what would be the answer for p in the equation -15+4/5p=9
Click here to see answer by Fombitz(13828)

Question 379338: If $8000 is invested at 12% compounded quarterly how much is in the account after 20 yrs?
Click here to see answer by Fombitz(13828)

Question 379490: IN 1912, an order by President Taft fixed the width and length of the U.S. flag in the ration 1 to 1.9. If 100 square feet of cloth are to be used to make a U.S. flag, estimate its dimensions to the nearest 1/4 foot.
How can I solve this?
Click here to see answer by mananth(12270)

Question 379564: Hi, I'm wondering if anyone can help me?
my problem is: a=h(a+b)/2
I'm not sure if i should multiply by h or 2?...
please and thank you
Click here to see answer by Fombitz(13828)

Question 379586: Convert to a percent.
0.979

Click here to see answer by Fombitz(13828)

Question 379587: Convert to a fraction in lowest terms.
12.4%

Click here to see answer by Fombitz(13828)

Question 379593: I have to write an equation to find out $797.30 worth of cookies being sold?
Click here to see answer by Alan3354(30993)

Question 379626: What is the slope of the line that goes through the given points of (9,1), (3,9)
Click here to see answer by nerdybill(6963)

Question 379659: (n+2n)=3n
Click here to see answer by Alan3354(30993)

Question 379737: i am having problems with solving dividing equations here is one of the problems i dont understand 1/2x=3
Click here to see answer by fractalier(2101)

Question 379755: solve by elimination method: 9x-9y=9;
7y-3x=-5
Click here to see answer by ewatrrr(10682)

Question 379794: How to solve the following two-step equation:
-4 + 11q = -92
Click here to see answer by unlockmath(1603)

Question 379794: How to solve the following two-step equation:
-4 + 11q = -92
Click here to see answer by jim_thompson5910(28598)

Question 379899: Please show how Write the point-slope form of the equation of the line passing through the points
(1,4) and (3,6).

Click here to see answer by robertb(4012)

Question 379893: Please show how to solve for x: 7 – 5 (x – 3) + 4 = 2 + 3 (x + 4)
Click here to see answer by robertb(4012)

Question 379946: I am trying to help daughter with work but can't remember how. Can you please help me with this problem? -7(1-4m)=13(2m-3)
Click here to see answer by robertb(4012)

Question 380014: -3(b-8)-5=9(b+2)+1
I tried
-3b+24-5=9b+18+1
-3b+19=9b+19
-3b=9b
Click here to see answer by jim_thompson5910(28598)

Question 380087: can some one please help me with this
5.500 * (10^4)^3

thank you
Click here to see answer by Fombitz(13828)

Question 380120: four notepads and a textbook cost $72 dollars. The textbook cost $44. How much did each of the notepads cost?

Click here to see answer by kingme18(98)

Question 380126: 7 minus 18 divided by 3 equals ?

Click here to see answer by richard1234(5390)

Question 380272: Solve equation by factoring: 24d^2 + 30d + 9 =0
Click here to see answer by rapaljer(4667)

Question 380315: Please help me solve:
If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take for both of them to paint the house together?

Click here to see answer by ewatrrr(10682)

Question 380366: PLEASE HELP.
A student makes a $9.50 purchase at the bookstore with a $20 bill. The store has no bills and given the change in quarters and fifty cent prices. There are 30 coins in all. How many of each kind are there?

Click here to see answer by Jk22(389)

Question 380414: Given the following function, find f(-2)

f(-2)= ?
Click here to see answer by rfer(12676)

Question 380392: Solve the equation for x.
-5(7x-5)+6=-35x+31
Click here to see answer by jim_thompson5910(28598)

Question 380431: Solve equation if the domain is (-2,-1,1,3,4).
Click here to see answer by richard1234(5390)

Question 380434: Hi, I am having trouble with my homework. My teacher assigned some problems to solve for x i believe. Here is one of the problems,
9(x+8)+6 = 8(x+8)+4
I believe we are solving for x im not sure where to start, im very confused a, step by step explanation would be greatly appreciated.
Thanks, Ricky
Click here to see answer by stanbon(57410)

Question 380426: -7x>1/15 Solve by using multiplication principles?
Click here to see answer by stanbon(57410)

Question 380440:

Click here to see answer by mananth(12270)

Question 380440:

Click here to see answer by rfer(12676)

Question 380451: express the following as a unit rate. if necessary, round to the nearest tenth
100 miles 2.5 hours
Click here to see answer by Alan3354(30993)

Question 380451: express the following as a unit rate. if necessary, round to the nearest tenth
100 miles 2.5 hours
Click here to see answer by stanbon(57410)

Question 380453: Hi, I am having trouble with my homework. My teacher assigned some problems to solve for x i believe. Here is one of the problems,
9(x+8)+6 = 8(x+8)+4
I believe we are solving for x im not sure where to start, im very confused a, step by step explanation would be greatly appreciated.

Click here to see answer by rfer(12676)

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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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, 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