Questions on Algebra: Equations answered by real tutors!

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Question 914134: 1/2FcC=R Solve for Fc. 1 is the numerator and the denominator is 2FcC. I know the correct answer is Fc=1/2RC but how do you get that answer.
Thanks
Click here to see answer by ewatrrr(24785)

Question 914392: Please help!
How do I solve -2(g-1)=g-4
Click here to see answer by MathLover1(20849)

Question 914420: PLEASEE HELPPP !
Determine whether the sequence is arithmetic, geometric, or neither.
3, 5.6, 8.2, 10.8, 13.4, ...
Click here to see answer by Alan3354(69443)

Question 914422: HELPPPP !
Find the common ratio for the geometric sequence 10(5)n-1
Click here to see answer by jim_thompson5910(35256)

Question 914480: The numerator of a fraction is 7 less than the denominator. If 3 is added to the numerator and 9 is subtracted from the denominator the resulting fraction is equal to 3/2. Find the original fraction.
I tried the following, but am not finding the right answer:
"Let x= denominator"
"Let x-7= numerator"
(X-9)+(x-7)+9=3/2
2(x-9+x-7+9)= 3/2 (2/1)
2x-18+2x-14+18=3
4x-14=3
4x=17
X=17/4
Click here to see answer by richwmiller(17219)

Question 914529: If A B=10, B C=12 and A C=15 .what is the value of A ?
Click here to see answer by ewatrrr(24785)

Question 914566: write the equation of a line that has slope -1 and passes through the point (-2,3)
Click here to see answer by ewatrrr(24785)

Question 914588: the length of a rectangle is 8 more than twice it's width. the perimeter is 600 cm. find its length. WHAT'S THE ANSWER?! Please help thank you :)
Click here to see answer by ewatrrr(24785)

Question 914570: 1.) write the equation of a vertical line passing through the point (6,2)
2.) write the equation of a line that passes through the origin and the point (-4,3)
Click here to see answer by josgarithmetic(39616)

Question 914603: split the number 61 into two parts such that quarter of the first part increased by a sixth of the other part gives 12. What is the first part?
Click here to see answer by josgarithmetic(39616)

Question 914813: HELPPPPP!!!!
Find the kth partial sum of the arithmetic sequence {Un} with a common difference d.
k=14, u1=-1, d=6
Click here to see answer by Fombitz(32388)

Question 914912: Mrs.Garcia invested half of her money at 6 percent per year and the other held at 8 percent per year. Her annual income from two investments 5600. how much did she invest at each rate

Click here to see answer by dkppathak(439)

Question 915016: -8(k+9)-(-9k-3)=3 so far this is what I have, but then I got stuck
-8k+-72-9k+3=3
Click here to see answer by ewatrrr(24785)

Question 915086: You spilt $1500 between two savings aaccounts. Acount A pays annual 5% interest and Account B pays 4% interest. After one year, you have earned a total of $69.50 in interest. How much money did you invest in each account?
This problem needs to be solved by system of equations. I tried solving it by using the two equations:
0.05A+0.04B= ?
A+B=69.50
But I couldn't decide if the percentages would add up to 1500, so I erased it all and started over.
Could you please help me?
Thank you (:
Click here to see answer by richwmiller(17219)

Question 915081: 500t = 750(t-1)
Click here to see answer by jim_thompson5910(35256)

Question 915219: write an equation in point slope form for the line with a slope of 3 and passes through the points of (1, -3)
Click here to see answer by MathLover1(20849)

Question 915228: Pilar bought a box of nails and hammer. The hammer cost $12. Altogether pilar spent more than $15 write an inequality to find the possible cost of the box and nails

Click here to see answer by josmiceli(19441)

Question 915265: In the equation 8(y+12)=100 what is the value of y and how do you work out the answer
Click here to see answer by josgarithmetic(39616)

Question 915328: x−1/x+3+ 4/ x2 +25x+66=1/x+22

Click here to see answer by ewatrrr(24785)

Question 915336: PLEASSEEE HELPPP !!!
You are deposing $20 each month in a credit union savings club account. The interest rate is 0.4% per month or 4.8% annually. The balance at the beginning of the nth month can be given by the following recursive function.
U1=20
Un=20+(1.004)Un-1
Find the balance at the beginning of the 5th month.

Click here to see answer by ewatrrr(24785)

Question 915384: Good day
Struggling a bit with this one, please help

Make �I� the formula of the equation by completing the sqaure
I�R + VI - P = 0
Click here to see answer by josgarithmetic(39616)

Question 915373: Good day
Here's my question. Just want to know if I'm manipulating the formula correctly

f = p√1+CL/k�
how do I make k the subject?
f=5.188 p=5.12 C=0.003 and L=23

Kind Regards
Click here to see answer by josgarithmetic(39616)

Question 915158: f(x) = -2(x + 1)2 + 5
how to find coordinates of vertex for parabola
Click here to see answer by Fombitz(32388)

Question 915526: y = 2(x - 3)^3 + 4 how would I describe the sequence of transformations?
Click here to see answer by jim_thompson5910(35256)

Question 915587: Please, help me Simplify: ⁴√64.⁴√32
Click here to see answer by rothauserc(4718)

Question 915585: Please, help me Simplify: √64x⁷/√4x�
Click here to see answer by MathLover1(20849)

Question 915731: The product of negative three and a number is twenty-four. how do you translate this into an equation and then solve?
Click here to see answer by Hawksfan(61)

Question 915778: 2x^2-x-3=0 using factoring method
Click here to see answer by Fombitz(32388)

Question 915864: Good day
Struggling a bit with this one, please assist
Make "I" the subject of the formula by completing the sqaure
I�R + VI - P = 0
Kind Regards
Click here to see answer by Fombitz(32388)

Question 915898: Can someone please look these over and see if I've done them right?

(a) 0 ∈ ∅ - true or false: 0 is an element of null. FALSE: 0 is a real number
(b) ∅ ∈ {0}- true or false: Null is an element in the set {0}. FALSE: Null and 0 are not the same thing.
(c) {0} ⊂ ∅ - true or false: 0 is a subset of null. FALSE: 0 is a real number.
(d) ∅ ⊂ {0} - true or false: Null is a subset of 0. False: Null is not a number, but 0 is.
(e) {0} ∈ {0} - true or false: 0 is an element in the set 0. TRUE: 0 is part of the set 0.
(f) {0} ⊂ {0} - true or false: 0 is a subset of 0. TRUE: 0 is part of the set 0.
(g) {∅} ⊆ {∅}- true or false; Null is a subset of the set null. TRUE: the subset null can fit into the set null.

Click here to see answer by stanbon(75887)

Question 915888: I am having difficulty writing set builder notations.
{0,3,6,9,12}
{-3,-2,-1,0,1,2,3}
{m,n,o,p}
How would I write something like:
x where x is a positive multiple of 3 less than 15?
{ x | x = ???? do I just write out the words or does it have to be an equation?
{ x | x = whole numbers greater than -4 and less than 4
{ x| I have no idea how to do one with letters :-(
Click here to see answer by richard1234(7193)

Question 915913: My teacher asked us how to solve this question we didnt know so for a free test grade i need the answer to this equation
Sp+qp=5 the varibles have no specific number please help

Click here to see answer by richard1234(7193)

Question 915931: My Pre-Algebra question is : y+9=0
for solving equations using addition or subtraction

Click here to see answer by Alan3354(69443)

Question 915978: What is -94=6x-10?
Click here to see answer by jim_thompson5910(35256)

Question 915970: 26=8+v
Click here to see answer by jim_thompson5910(35256)

Question 916025: y+1/8=1/2(x+3)
Click here to see answer by Alan3354(69443)

Question 916139: In Jared�s school, 6 more fourth-graders use blue pens than black.
Four times as many fourth-graders use pencils than blue pens.
If 5 fourth-graders use black pens, how many fourth-graders use ????missing part of the question???
How to start? where to start? I just need help writing out the equation please
Click here to see answer by JulietG(1812)

Question 916140: Cycle Center has bicycles and tricycles in the store room. There are at least two of each and there are more bicycles than tricycles. There are 23 wheels altogether =. How many bicycles and tricycles are in the storeroom?
(23-9)x=x/2=7 bicycles
(23-14)x=x/3=3 tricycles
Click here to see answer by josgarithmetic(39616)

Question 915619: What is the proper equation for five plus the quotient of a number x and four is seven?
Click here to see answer by fangirlashley(1)

Question 916239: During a pizza party in class, students had the option of cheese or pepperoni pizza. They they could choose between pepsi, dr. Pepper, or Mountain dew. How many different ways could a student choose pizza and soda?

Click here to see answer by ewatrrr(24785)

Question 916259: Three times the greatest of the three consecutive even integers exceeds twice the least by 38. What are the integers. Type your response in the space provided.
Click here to see answer by ewatrrr(24785)

Question 916401: Write an equation of the line through each pair of points in slope-intercept form
(2, -1) and (2, 6)
Click here to see answer by jim_thompson5910(35256)

Question 916585: Solve the equation (exact solution) by completing the following steps. Enter DNE in any empty blank(s).

http://i.imgur.com/8hkl24Y.png

Thank you
Click here to see answer by ewatrrr(24785)

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, 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, 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, 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, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240, 30241..30285, 30286..30330, 30331..30375, 30376..30420, 30421..30465, 30466..30510, 30511..30555, 30556..30600, 30601..30645, 30646..30690, 30691..30735, 30736..30780, 30781..30825, 30826..30870, 30871..30915, 30916..30960, 30961..31005, 31006..31050, 31051..31095, 31096..31140, 31141..31185, 31186..31230, 31231..31275, 31276..31320, 31321..31365, 31366..31410, 31411..31455, 31456..31500, 31501..31545, 31546..31590, 31591..31635, 31636..31680, 31681..31725, 31726..31770, 31771..31815, 31816..31860, 31861..31905, 31906..31950, 31951..31995, 31996..32040, 32041..32085, 32086..32130, 32131..32175, 32176..32220, 32221..32265, 32266..32310, 32311..32355, 32356..32400, 32401..32445, 32446..32490, 32491..32535, 32536..32580, 32581..32625, 32626..32670, 32671..32715, 32716..32760, 32761..32805, 32806..32850, 32851..32895, 32896..32940, 32941..32985, 32986..33030, 33031..33075, 33076..33120, 33121..33165, 33166..33210, 33211..33255, 33256..33300, 33301..33345, 33346..33390, 33391..33435, 33436..33480, 33481..33525, 33526..33570, 33571..33615, 33616..33660, 33661..33705, 33706..33750, 33751..33795, 33796..33840, 33841..33885, 33886..33930, 33931..33975, 33976..34020, 34021..34065, 34066..34110, 34111..34155, 34156..34200, 34201..34245, 34246..34290, 34291..34335, 34336..34380, 34381..34425, 34426..34470, 34471..34515, 34516..34560, 34561..34605, 34606..34650, 34651..34695, 34696..34740, 34741..34785, 34786..34830, 34831..34875, 34876..34920, 34921..34965, 34966..35010, 35011..35055, 35056..35100, 35101..35145, 35146..35190, 35191..35235, 35236..35280, 35281..35325, 35326..35370, 35371..35415, 35416..35460, 35461..35505, 35506..35550, 35551..35595, 35596..35640, 35641..35685, 35686..35730, 35731..35775, 35776..35820, 35821..35865, 35866..35910, 35911..35955, 35956..36000, 36001..36045, 36046..36090, 36091..36135, 36136..36180, 36181..36225, 36226..36270, 36271..36315, 36316..36360, 36361..36405, 36406..36450, 36451..36495, 36496..36540, 36541..36585, 36586..36630, 36631..36675, 36676..36720, 36721..36765, 36766..36810, 36811..36855, 36856..36900, 36901..36945, 36946..36990, 36991..37035, 37036..37080, 37081..37125, 37126..37170, 37171..37215, 37216..37260, 37261..37305, 37306..37350, 37351..37395, 37396..37440, 37441..37485, 37486..37530, 37531..37575, 37576..37620, 37621..37665, 37666..37710, 37711..37755, 37756..37800, 37801..37845, 37846..37890, 37891..37935, 37936..37980, 37981..38025, 38026..38070, 38071..38115, 38116..38160, 38161..38205, 38206..38250, 38251..38295, 38296..38340, 38341..38385, 38386..38430, 38431..38475, 38476..38520, 38521..38565, 38566..38610, 38611..38655, 38656..38700, 38701..38745, 38746..38790, 38791..38835, 38836..38880, 38881..38925, 38926..38970, 38971..39015, 39016..39060, 39061..39105, 39106..39150, 39151..39195, 39196..39240, 39241..39285, 39286..39330, 39331..39375, 39376..39420, 39421..39465, 39466..39510, 39511..39555, 39556..39600, 39601..39645, 39646..39690, 39691..39735, 39736..39780, 39781..39825, 39826..39870, 39871..39915, 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