Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 285355: what is 4x+7y=678 in terms of y?
Click here to see answer by user_dude2008(1862)

Question 285345: im a little confused as to what to do with the exponent in this situation. My teacher taught us in class but now that im home my mind went blank. The answer i came up with is -1. But the answers that were provided on this site are -2 and -4. Here is the problem: x^2 + 6x + 8 = 0 Here's what i did: x*x+6x+8=0 2x+6x+8=0 8x+8=0 8x=-8 x=-1...Someone just sent me an answer that just said factor (x+4)(x+2)=0....I'm even more confused now...IS THERE ANYONE THAT CAN BREAK THIS PROBLEM DOWN FOR ME STEP BY STEP PLEASE...THANK YOU!!
Click here to see answer by jim_thompson5910(35256)

Question 285413: a bottle and a cap together cost $1.10. the bottole costs $1 more than the cap.how much does each cost?
Click here to see answer by josmiceli(19441)

Question 285472: which ordered pair are solutions?

3b + b = 8
Click here to see answer by richwmiller(17219)

Question 285472: which ordered pair are solutions?

3b + b = 8
Click here to see answer by edjones(8007)

Question 285421: x+7=-(5x-12)+7
Click here to see answer by edjones(8007)

Question 285493:
Click here to see answer by milkis(2)

Question 285491: 4x+y-z=8
x-y+2z=3
3x-y+z=6
I am not even sure where to start with this problem....
Click here to see answer by checkley77(12844)

Question 285615: Find the missing factor:
6x^4=(3x^3)(____)
I have no idea whereabouts on how to do this.
Click here to see answer by JBarnum(2146)

Question 285615: Find the missing factor:
6x^4=(3x^3)(____)
I have no idea whereabouts on how to do this.
Click here to see answer by Alan3354(69443)

Question 285485: 5p/7-18=-43
Click here to see answer by richwmiller(17219)

Question 285698: 50-word response to the following: How do you know when an equation has infinitely many solutions? How do you know when an equation has no solution?

Click here to see answer by stanbon(75887)

Question 285688: How do I solve for x? 6x/11 = 2x/7 + 20

Click here to see answer by richwmiller(17219)

Question 285710: Suppose you are an event coordinator for a large performance theater. One of the hottest new Broadway musicals has started to tour, and your city is the first stop on the tour. You need to supply information about projected ticket sales to the box office manager. The box office manager uses this information to anticipate staffing needs until the tickets sell out. You provide the manager with a quadratic equation that models the expected number of ticket sales for each day x. ( is the day tickets go on sale).

a. Does the graph of this equation open up or down? How did you determine this?

b. Describe what happens to the tickets sales as time passes?
c. Use the quadratic equation to determine the last day that tickets will be sold. (Note: Write your answer in terms of the number of days after ticket sales begin.)

d. Will tickets peak or be at a low during the middle of the sale? How do you know?

e. After how many days will the peak or low occur?

f. How many tickets will be sold on the day when the peak or low occurs?

g. What is the point of the vertex? How does this number relate to your answers in parts e and f?

h. How many solutions are there to the equation ? How do you know?

i. What do the solutions represent? Is there a solution that does not make sense? If so, in what ways does the solution not make sense?

Click here to see answer by stanbon(75887)

Question 285728: solve the inquality x over 9>5.2
Click here to see answer by stanbon(75887)

Question 285887: 2x/5+3-4x/5=1/5
Click here to see answer by user_dude2008(1862)

Question 285942: 2(n-4)=4
Click here to see answer by Alan3354(69443)

Question 285949: i need help solving 2xsquared-x-10=0
Click here to see answer by oberobic(2304)

Question 285892: 2x/5+3-4x/5=1/5
Click here to see answer by checkley77(12844)

Question 285986: How do I find the stationary points in this equation:
y=(3x-1)(x-2)^4
Click here to see answer by solver91311(24713)

Question 286080: What is the complete solution to the equation the absolute vale of 3-6x =2?
Click here to see answer by richwmiller(17219)

Question 286104: ok my teacher gave us words problmes to do and im stuck. Here is the problem: Bill is 3 times as old as Peter. Six years from now, Bill will be twice as old as Peter will be then. Find their present ages. Im stuck on what the formula is.
Click here to see answer by stanbon(75887)

Question 286125: finding x,y the questionis x+2y=4 2x-y=3 I don't understand when finding 2x
Click here to see answer by oberobic(2304)

Question 286116: i need help on this word problem as well. i have the first part but im stuck on the second. The problem is: In Josh's Bank there is a collection on nickles, dimes, and quarters which amount to $3.20. There are 3 times as many quarters as nickles, and 5 more dimes than nickles. How many coins of each type are there? I have the first equation, .5n+.10d+.25q=3.20 but i cant figure out the second part.
Click here to see answer by oberobic(2304)

Question 286113: -2/5(3x+1)=1/3(2-x)
Click here to see answer by user_dude2008(1862)

Question 286210: 20 - 1/5d = 3/10d + 16
Click here to see answer by checkley77(12844)

Question 286240: solve equation f=kma for a
Click here to see answer by user_dude2008(1862)

Question 286253: Hi, I'm supposed to simplify this if possible.
((1/(x+h)^2)-(1/x^2))/h
I've tried several ways of solving this, most recently coming up with the answer (1-2xh-h^2)/(x^2h+2xh^2+h^3) but this isn't right. Can someone please help me?
Click here to see answer by stanbon(75887)

Question 286254: how do you do equations and solving problems? solving multi-step equations with like terms
Click here to see answer by Alan3354(69443)

Question 286254: how do you do equations and solving problems? solving multi-step equations with like terms
Click here to see answer by richwmiller(17219)

Question 286294: When one integer is added to the square of the next consecutive integer, the sum is 41. Find the integers.
Please show how to solve this?
Click here to see answer by oberobic(2304)

Question 286320: 1/4(x-8)=3/4x

Click here to see answer by richwmiller(17219)

Question 286367: two consecutive positive integers whose product is 80.
Click here to see answer by checkley77(12844)

Question 286483: A rectangle is twice as long as it is wide. its perimeter is 48cm find its dimension.
Click here to see answer by texttutoring(324)

Question 286517: how to factor 3w^2+7w-20
Click here to see answer by jim_thompson5910(35256)

Question 286541: Given F(X)=x-3 and g(X)= X^2 over x-3 find g(f(x))
Click here to see answer by nyc_function(2741)

Question 286668: How do I solve this equation:
Click here to see answer by Alan3354(69443)

Question 286671: How do would I solve this equation?
Click here to see answer by richwmiller(17219)

Question 286671: How do would I solve this equation?
Click here to see answer by mananth(16946)

Question 286530: Solve the equation x+3=the square root of 7x+29 and check for extraneous roots

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

Question 286672: 1.Write a rule for the function represented in the table.
x 0 1 2 3
y 4 6 8 10
thank you
also sorry if this isn't right place..
Click here to see answer by scott8148(6628)

Question 286908: -5(-m + 3) = -10m + 30
Click here to see answer by jim_thompson5910(35256)

Question 286825: 50% of some number is 7 minus the same number
Click here to see answer by ptaylor(2198)

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, 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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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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, 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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