Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 329509: write the equation in standard form
9(x-4)^2+ 16(y-3)^2=144
Click here to see answer by nyc_function(2741)

Question 329528: Please solve the system of equations by the method of your choice:
2x-4y=6 and 4x+y=21
Are these equations independent, inconsistent, or dependent?
Thank you,
Shelley E.
Click here to see answer by stanbon(75887)

Question 329540: #1. The common cold is caused by a rhinovirus. The polynomial

describes the billions of viral particles in our bodies after x days of invasion. Find the number of viral particles, in billions, after 0 days (the time of the cold�s onset), 1 day, 2 days, 3 days, and 4 days. After how many days is the number of viral particles at a maximum and consequently the day we feel the sickest? By when should we feel completely better?

Click here to see answer by stanbon(75887)

Question 329529: Please solve the system of equations by the method of your choice:
6x+3y=9 and y=-2x+2
Are these equations independent, inconsistent or dependent?
Thank you,
Shelley E.
Click here to see answer by Fombitz(32388)

Question 329510: The arch of an underpass is part of an ellipse. Find the equation of the ellipse. Assume a = 50, b = 15.
_____=1
Click here to see answer by Fombitz(32388)

Question 329514: Solve the system of equations for real values of x and y. (Sort your answers in increasing order, first by their x -values, then by their y -values.)
2x^2-y^2+7= 0
3x^2-4y^2+33=0

Click here to see answer by Fombitz(32388)

Question 329513: solve the system by substitution
x^2+y^2=97
y=x^-7
Click here to see answer by Fombitz(32388)

Question 329506: write the equation of a circle in standard form
x^2+y^2+6x-4y=-9
the equation of the circle in stadard form ______=4
Click here to see answer by Fombitz(32388)

Question 329508: Write the equation of a parabola in standard form. Give the coordinates of the vertex.
x=y^2+10y=24
Click here to see answer by Fombitz(32388)

Question 329440: the number 8 is supossed to be 8 squared but i dont know how to make the 8 small enough to be at the top right hand of the 5.
9-(3-5)^8-4
Click here to see answer by Fombitz(32388)

Question 329527: Please solve: 2(x-4)<3x+8
Thank you,
Shelley E.
Click here to see answer by privani(34)

Question 329606: five-sixths of a number is -60 what is the number
Click here to see answer by jim_thompson5910(35256)

Question 329776: Perform indicated operation.
1/6 - 5/6
Click here to see answer by edjones(8007)

Question 329774: Build each rational expression into an equivalent rational expression with the indicated denominator.
5/6 = ?/3bt
Click here to see answer by edjones(8007)

Question 329788: If 3x^2 � 2x + 7 = 0, then (x � 13)^2=
I DON'T GET IT ALL CAN YOU HELP ME?
Click here to see answer by edjones(8007)

Question 329767: Which numbers cannot be used in place of the variable in each rational expression?
2x + 3
over
X^2 - 16
Click here to see answer by edjones(8007)

Question 329703: The function H described by H(x) = 2.75 x + 71.48 can be used to predict the height, in centimeters, of a woman whose humerus is x cm long. Predict the height of a woman whose humerus is 38cm long???
Click here to see answer by edjones(8007)

Question 329809: Amy paid $63.51 for a pair of shoes during a 35 % off sale. What was the regular price???
Click here to see answer by mananth(16946)

Question 329810: Translate to an algebraic expression.
The product of 31 % and some number
type the percentage as a decimal, use d to represent some number
Click here to see answer by mananth(16946)

Question 329812: Multiply
1/8 * (- 3/2)
Click here to see answer by mananth(16946)

Question 329811: (2X+5/2X+3)-(2X-3/2X-5)=(2X-5/2X-3)-(2X+3/2X+5)

Click here to see answer by mananth(16946)

Question 329814: Solve using the multiplication principle
-2x > 1/9
Click here to see answer by Alan3354(69443)

Question 329825: i do not understand how to solve this can you help me
x+2/3=8/15
Click here to see answer by stanbon(75887)

Question 329966: If the perimeter of a rectangle is 68 inches and the length is 12 inches longer than the width, what is the width of the rectangle?
Click here to see answer by checkley77(12844)

Question 329958: Write the equation in standard form, if it is not already so, and graph it. (If the equation is written in standard form already, enter NONE.)
___________=1
Click here to see answer by checkley77(12844)

Question 329997: I need help with Algebra formulas

A= 2T+Q+H/4 solve for H
Click here to see answer by stanbon(75887)

Question 330029: which is the correct simplification of the equation 6x-4y-3x+y ?
Click here to see answer by mananth(16946)

Question 330038: 2a/a^2-9 plus a/a-3

Click here to see answer by mananth(16946)

Question 329956: The arch of an underpass is part of an ellipse. Find the equation of the ellipse. Assume a = 50, b = 15.
____________=1
Click here to see answer by Fombitz(32388)

Question 329954: Write the equation of a circle in standard form with the following properties.
Center at (1, 1); radius 10
Click here to see answer by Fombitz(32388)

Question 330036: 3a/a+5 plus 15/a+5
Click here to see answer by edjones(8007)

Question 330043: solve each equation
w/6 = 3w/11
Click here to see answer by edjones(8007)

Question 330033: 12a-6/x^2-16
Click here to see answer by Fombitz(32388)

Question 330034: 15t^3y^5/20w^7 multiplied by 24t^2w^3y^2
Click here to see answer by Fombitz(32388)

Question 330035: 3x^2+16x^3/x multiplied by x^2/9x^2 -1
Click here to see answer by Fombitz(32388)

Question 330041: solve each equation
1/3 -k+3/6k = 1/3k - k-1/2k

Click here to see answer by Fombitz(32388)

Question 330148: How do solve an equation for y when you have two different variables?
i.e: 3xy+y=15
Click here to see answer by Fombitz(32388)

Question 330161: solve the equation for y
x=7y+5
Click here to see answer by stanbon(75887)

Question 330192: if 5y-3=4, then y=
Click here to see answer by hanah(4)

Question 330207: b
---- = 3 what is b= ?
a+5
what is transforming equations?
Click here to see answer by Fombitz(32388)

Question 330245: find the center and the radius of
(x+3)^2+(y-2)^2=4
Click here to see answer by Fombitz(32388)

Question 330252: write the equation in standard form
9x^2+64(y-3)^2=576
Click here to see answer by Fombitz(32388)

Question 330253: write the equation in standard form
x=1/2 (y-3)^2-2
x=
Click here to see answer by Fombitz(32388)

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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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, 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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