Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

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Question 1039335: anuj has $ 100 in denomination of $5 and $2 coins. if the number of $ 2 coin anuj has five-eights of the number of $5 coin. how many coins of each types does he have
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Question 1039373: Which classification BEST describes the following system of equations?
5x+y+2z=13
4x+3y+6z=17
x+2y=4
inconsistent and dependent, consistent and dependent, consistent and independent, inconsistent and independent?

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Question 1039374: Given that (3, 2, –6) and (–2, 5, 1) are solutions of two equations in a system of three linear equations, which of the following is true about the system?
a) The system can only be consistent and independent
b) The system can be either inconsistent and independent or consistent and dependent
c) The system can be either inconsistent and dependent or consistent and independent
d) The system can only be inconsistent and dependent

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Question 1039401: Could you explain the steps to solve: C/D +2

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Question 1039505: The Mount Major hike starts in Alton Bay, 716 feet above sea level. The summit is 1796 feet above sea level, and it takes about 45 minutes for a typical hiker to make the climb. Find the rate at which this hiker gains altitude, in feet per minute.
Click here to see answer by josmiceli(19441) About Me 

Question 1039341: in a party if 1 out of every 3 guests brought bouquets,1 out of 5 brought gift items,1 out of 6 gave cash gifts and the remaining 27 guest gave gift vouchers and none of them gave two things. how many people attended the party
Click here to see answer by brohi(1) About Me 

Question 1039542: Can someone tell me the coordinates to plot this function?
http://prntscr.com/bm6q4m

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Question 1039547: Can someone check my work
http://prntscr.com/bm7bbb

Click here to see answer by Edwin McCravy(20054) About Me 

Question 1039563: How do you calculate a y-intercept?
Click here to see answer by rothauserc(4718) About Me 

Question 1039569: Write the equation in y=ax+b form. Do not use any spaces. Round a and b to the nearest tenth.?
Click here to see answer by Fombitz(32388) About Me 

Question 1039582: Which of the following is an equation of the line that passes through the points (-2,1) and (1,2) in the x-y plane?
x+3y=1
x+3y=5
x-3y=-5
x+3y=-5
x-3y=-1
please help me I dont know how to solve this type of problem.

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Question 1039580: Use the method of substitution to solve the system of linear equations.
6a=5-b
6a=6-b

Click here to see answer by Alan3354(69443) About Me 

Question 1039654: a boat covers a certain distance downstream in 2 hours.it covers the same distance upstream in 2.5 hours. the speed of the boat i 18 km/hr. find the speed of the water. also find the distance covered by the boat
Click here to see answer by ikleyn(52780) About Me 

Question 1039703: Iam going to college at the age of 50. I have never had algebra. I am required to take an assessment test. Im looking for the answer to an example problem.
Math problem:The graph of which of the following equations is a straight line parallel to the graph of y=2x?

Click here to see answer by Alan3354(69443) About Me 

Question 1039753: A boat covers a certain distance downstream in 2 hours.it covers the same distance upstream in 2.5 hours.
The speed of the boat i 18 km/hr.
Find the speed of the water. Also find the distance covered by the boat
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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

Question 1039771: Sam paid $12,000 of his salary as taxes this year. What he paid this year as taxes is 20% more than what he paid last year. If he paid 1/4 of his salary as taxes last year, what was his salary last year?
Thanks for taking time to answer my quastion.

Click here to see answer by jorel555(1290) About Me 

Question 1039906: The function A = A0e-0.00866x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 600 pounds of the material are initially put into the vault, how many pounds will be left after 120 years?
Click here to see answer by stanbon(75887) About Me 

Question 1039903: The rabbit population in a forest area grows at the rate of 4% monthly. If there are 260 rabbits in September, find how many rabbits (rounded to the nearest whole number)should be expected by next September. Use y = 260(2.7)0.04t.
Click here to see answer by josgarithmetic(39617) About Me 

Question 1039902: How do you Graph the function by making a table of coordinates for this problem
f(x)=(1/15)^x

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Question 1039902: How do you Graph the function by making a table of coordinates for this problem
f(x)=(1/15)^x

Click here to see answer by stanbon(75887) About Me 

Question 1039908: write the equation in its equivalent logarithmic form

3sqr(8)=2

Click here to see answer by jim_thompson5910(35256) About Me 

Question 1039912: what is the domain of this logarithmic function
f(x)-log (x+9/x-4)

Click here to see answer by Boreal(15235) About Me 

Question 1039909: How would I solve using the formula given
The rabbit population in a forest area grows at the rate of 4% monthly. If there are 260 rabbits in September, find how many rabbits (rounded to the nearest whole number)should be expected by next September. Use y = 260(2.7)0.04t.

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Question 1039926: How do you find the inverse of the one to one function
f(x)= 3 sqr x-2

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Question 1039929: find the inverse of the one to one function
Question f(x) = 3 sqr x - 2

multiple choice below
A) f-1(x) = x3 + 2 B) f-1(x) = x3 + 4 C) f-1(x) =1x3 + 2
D) f-1(x) = x + 2

Click here to see answer by Edwin McCravy(20054) About Me 

Question 1039927: write the equation in its equivalent exponential form
log2 8=3

Click here to see answer by Alan3354(69443) About Me 

Question 1039955: I don't have a graphing calculator & need some much needed help on the numbers below. Here are the questions. 1. Use your calculator to find the equation of the regression line.
Write the equation in y=ax+b form. Do not use any spaces. Round a and b to the nearest tenth. The next question is What is the correlation coefficient for the data?
Don't forget to turn the Diagnostic On (in the catalog menu of the calculator) (round to the nearest thousandth. Here is the list of numbers of weight/height.
99 61
104 61
110 62
133 64
130 65
142 68
146 66
153 67
184 69
185 70

Click here to see answer by Theo(13342) About Me 

Question 1012156: Find the distance between the points.
(-7,8),(5,-8)

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Question 1040011: Write the standard form of the equation of the line through the pair of points left parenthesis 4 comma negative 9 right parenthesis(4,−9) and left parenthesis negative 2 comma 4 right parenthesis .(−2,4).  Write the equation using only integer coefficients.
Click here to see answer by josgarithmetic(39617) About Me 

Question 1040084: I am trying to understand how to solve this equation
y1=21-x
y2=6x

Click here to see answer by ikleyn(52780) About Me 

Question 1039954: I don't have a graphing calculator & need some help on the numbers list below. Here are the questions. Question #1. Use your calculator to find the equation of the regression line.
Write the equation in y=ax+b form. Do not use any spaces. Round a and b to the nearest tenth. Question #2 What is the correlation coefficient for the data?
Don't forget to turn the Diagnostic On (in the catalog menu of the calculator) (round to the nearest thousandth. Here is the list of numbers. Weight Height
99 61
104 61
110 62
133 64
130 65
142 68
146 66
153 67
184 69
185 70

Click here to see answer by Boreal(15235) About Me 

Question 1040081: y=-3/4x-1; 12,5- us this same equation to find parallel and perpendicular?
steps in writing the equation of a line parallel to the given line and passing through the given points
what is the equation of a line perpendicular to the given line and passing through the given points

Click here to see answer by stanbon(75887) About Me 

Question 1040092: Jess is tracking the progress of her plant's growth. She started tracking its growth from a height of 5cm. The plant grows 0.5cm every day.
A) write a linear equation that represents the height of the plant H after D days
B) Using your equation, what will the height of the plant be after 20 days?
C) using your equation, approximately how long will it take the plant to reach a height of 10cm?

Click here to see answer by josgarithmetic(39617) About Me 

Question 1040111: Find the slope-intercept equation for the line with the indicated slope and y-intercept. Slope-4/9 and y-intercept(0,4)

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Question 1040112: Find an equation of the line containing the given pair of points. Write your final answer in slope-intercept form. (4,-7) and (-3,-7)
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Question 1040124: Which of the following are point-slope equations of the line going through (-2, -2) and (2, 1)?
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Question 1040124: Which of the following are point-slope equations of the line going through (-2, -2) and (2, 1)?
Click here to see answer by josmiceli(19441) About Me 

Question 1040158: Find the missing coordinate to complete the​ ordered-pair solution to the given linear equation.
7y + 6x = -42
(?,6)

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Question 1040158: Find the missing coordinate to complete the​ ordered-pair solution to the given linear equation.
7y + 6x = -42
(?,6)

Click here to see answer by MathTherapy(10552) About Me 

Question 1040225: what does the line x=3 looks like?
Click here to see answer by Fombitz(32388) About Me 
Question 1040225: what does the line x=3 looks like?
Click here to see answer by josmiceli(19441) About Me 

Question 1040256: How do you sketch lines through the point with the indicated slopes on the same set of coordinate axes? With (4,2) 0,1,4,-2
Click here to see answer by stanbon(75887) About Me 

Question 1040311: Solve the system by substitution:2x-y=-5 and y=x+4
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Question 1040438: how do I get y alone and get the final equation in 2y= 10x-8 so I can name the slope and y-intercept?
Click here to see answer by ikleyn(52780) About Me 
Question 1040438: how do I get y alone and get the final equation in 2y= 10x-8 so I can name the slope and y-intercept?
Click here to see answer by jim_thompson5910(35256) About Me 

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, 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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, 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