Questions on Algebra: Equations answered by real tutors!

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Question 164805: can someone please help:
Find the exact interest. Use 365 days in a year, and use the exact number of days in a month. Round to the nearest cent, if necessary.
$1300 at 10% for 114 days
a. $4.06
b. $41.17
c. $4.12
d. $40.60
Click here to see answer by checkley77(12569)

Question 165004: x^2+6x-4=0
The solution is x=
The answer that I got is -3+sqrt13,-3-sqrt13

is that correct?
Click here to see answer by orca(409)

Question 165060: 8x-6y= -30
8x=6y -30 - I need to graph
Click here to see answer by jojo14344(1512)

Question 165161: how do i solve 2y-4x=8?
Click here to see answer by jojo14344(1512)

Question 165193: 5t+2(t+1)=30
Click here to see answer by allicat2008(3)

Question 165243: 2a/3=8+4a

Click here to see answer by vleith(2825)

Question 165254: I have a question that is giving me trouble, if anyone could help me out it would be appreciated.
Nick has two cans of white paint, one with a 2% yellow pigment and the other with a 5% yellow pigment. Nick wants to mix the two paints to get paint with a 4% yellow pigment. How much of the 5% yellow pigment paint should be mixed with 0.4 gallons of the 2% yellow pigment paint to get the desired paint?
Click here to see answer by stanbon(57377)

Question 165296: How do you solve an eqation like this? 4x-5(3x+10)=126
Click here to see answer by nerdybill(6962)

Question 165303: distance between point A & point B = 310 KM . two person leave these points at the same time , one with speed of 106km/h and the other with 87km/h . How long does it take to meet each other ?
Click here to see answer by gonzo(654)

Question 165314: How do you solve 5x-4(2x+11)=13 ?
Click here to see answer by gonzo(654)

Question 165367: saide and jose are in chicago o hare airport walking between terminals. sadie walks on the moving walkway( like a flat esculator moving along the floor). Her speed(relative to the ground) is 220 ft per minute. jose starts at the same time and walks alongside teh walkway at a speed of 100 ft per minute. how long have they been walking when sadie is 600 ft ahead of jose?
Click here to see answer by ankor@dixie-net.com(15658)

Question 165364: The perimeter of an equilateral triangle is 48.6 centimeters. Find the length of each side.
Click here to see answer by Mathtut(3670)

Question 165360: A candle shop makes 60 candles per week. It plans to increase the number of candles it makes by 8% until it reaches a production of 132 candles per week. How many weeks will it take for the shop to reach its production scheldule?
Click here to see answer by ankor@dixie-net.com(15658)

Question 165450: Solve the given formula for the specified variable.
A = 2a + b + c for a
Click here to see answer by Mathtut(3670)

Question 165533: How do you solve for a multi step two sided equation? for example
5p-2=6p-9 ?
Click here to see answer by Mathtut(3670)

Question 165535: Use the substitution method to solve the systems of equations.
2x+y=4
2x-y=0
I am racking my brain on this one! thanks in advance for any help you would be able to give me!

Click here to see answer by Mathtut(3670)

Question 165467: what does 1.08^ actually mean if i were to write it out on paper?
Click here to see answer by gonzo(654)

Question 165590: Hi, if a does not equal b, and 1/x +1/a = 1/b, then x=
I have tried 1/x=1/b-1/a
..thankyou
Click here to see answer by Earlsdon(6287)

Question 165605: 8x+4x+-15=-11+3(4x-1) The Question is asking is the problem identity or no solution
Click here to see answer by oscargut(891)

Question 165627: Please explain how to solve this?
-5x-10=2-(x+4)
thank-you
Click here to see answer by oscargut(891)

Question 165615: 1/2t-6+8(t-9+7)=4t*3-5+2+3/4t
Click here to see answer by jim_thompson5910(28595)

Question 165555: h=(4l-10)/5n
Solving for L
Click here to see answer by NerdvanaGirl(8)

Question 165651: (2r-3)/7+3/7= -r/3
Click here to see answer by stanbon(57377)

Question 165651: (2r-3)/7+3/7= -r/3
Click here to see answer by checkley77(12569)

Question 165833: Factor completely:
24x2 - 10x – 4

Click here to see answer by checkley77(12569)

Question 165866: i have the problem 1/2x-7= -4; 6
i have to substitute 6 in for x. i'm not sure how to solve this equation with a fraction in it?
Click here to see answer by tutorcecilia(2152)

Question 165940: Evelyn paid $89.25 including 5% tax, for her textbook. How much did the book itself cost?
Click here to see answer by checkley77(12569)

Question 166005: a machine can filled 3864 cartons of milk in 0.4 hour. how many cartons of milk can it fill per hour?
Click here to see answer by ankor@dixie-net.com(15658)

Question 166066: What is the volume of a sphere of radius 4 meters
Click here to see answer by midwood_trail(310)

Question 166066: What is the volume of a sphere of radius 4 meters
Click here to see answer by MRperkins(300)

Question 166059: Jim is selling basketball tickets for a game. Adult tickets are $5 and $3 for student tickets. After 2 hours he sells 50 tickets and earns $180. How many adult tickets how many student tickets did he sell?
Click here to see answer by checkley77(12569)

Question 166192: 2. Biologists want to set up a station to test alligators in the lake for West Nile Virus. Suppose that the costs for such a station are $2,500 for setup costs and $3.00 to administer each test.
a. Write an expression that gives the total cost to test x animals.
b. You can find the average cost per animal by dividing total costs by number of animals. Write the expression that gives the average cost per animal.
c. Find the average cost per animal for 10 animals. 100 animals. 1,000 animals.
d. As the number of animals tested increases, what happens to the average cost to test the animals? Would the average cost ever fall below $3.00? If so, identify a value that supports your answer. If not, explain how you know.
e. How many animals should be tested for the average cost to be $5.00 per animal?

Click here to see answer by Mathtut(3670)

Question 166090: Which of these numbers is closest to the Golden Ratio? 1.16, 1.29, 1.62, 1.98 and why?
Click here to see answer by jim_thompson5910(28595)

Question 166213: Lauras dart landed on numbers 7, 4, 4,& 5. Use parentheses, multiplication, addition and subtraction to write an equation that gives a target number of 39.
Click here to see answer by edjones(7569)

Question 166238: write the equation of the line that passes through (-2,8) and has a slope of -3/5
Click here to see answer by Mathtut(3670)

Question 166274: the formula for intrest is I=prt. If p=$3500, t=2 years and I=$595, find r.
Click here to see answer by checkley77(12569)

Question 166274: the formula for intrest is I=prt. If p=$3500, t=2 years and I=$595, find r.
Click here to see answer by Mathtut(3670)

Question 166276: Solve the formula A=P+Prt solve for r.
Click here to see answer by checkley77(12569)

Question 166276: Solve the formula A=P+Prt solve for r.
Click here to see answer by jim_thompson5910(28595)

Question 166277: Find the measure of an angle such that the differance between the measure of its supplement and 5 times measure of the complemnet is 10%
Click here to see answer by Mathtut(3670)

Question 166287: 1/3b=24.78
Click here to see answer by Mathtut(3670)

Question 166291: Solve each problem (3x-2)/5=(4x+1)/3
Click here to see answer by tinaweber17(1)

Question 166286: Solve each Proportion (3x-2)/5=(4x+1)/3
Click here to see answer by Mathtut(3670)

Question 166305: Solve using the square root property:
(x + 6)2 = 121

Click here to see answer by jim_thompson5910(28595)

Question 165775: can someone help with this problem please:
Anne purchased a bond for a museum valued at $8000 for $2400. If the bond pays 5.5% annual interest compounded monthly, how long must she hold it until it reaches its full face value/
a. 23.94 years
b. 21.94 years
c. 19.94 years
d. 20.94 years
Click here to see answer by jojo14344(1512)

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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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