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

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Question 1092563: Micaela drove from Los Angeles to Ventura during rush hour at an average speed of 45miles per hour, and then drove back the same way at an average speed of 30miles per hour.
If the round trip took 3 hour and 15 minutes, how many miles is Micaela's one-way trip from Ventura to Los Angeles?
If the answer is not an integer, enter it as an exact decimal.

Click here to see answer by josmiceli(19441) About Me 

Question 1092569: A bus station runs a shuttle service to and from the airport. A shuttle that left the station traveling at 21 miles per hour is passed by a second shuttle that left 30 minutes later traveling at a rate of 27 miles per hour. How far did the first shuttle travel before it was passed by the second shuttle?
If the answer is not an integer, enter it as an exact decimal.
The shuttle traveled.... miles before it was passed.

Click here to see answer by josmiceli(19441) About Me 

Question 1092564: Express commuter train #12 leaves the downtown station and travels at an average speed of 5050miles per hour towards the north side station, which is 3737miles away. Twelve minutes later, express commuter train #7 leaves the north side station and travels at an average speed of 4040miles per hour towards the downtown station.
At the moment when the two trains pass each other, how far (in miles) is the #12 train from the downtown station and how long (in minutes) has the #12 train have been traveling?
If the answer is not an integer, enter it as an exact decimal.
#12 train is.... miles from the downtown station and has been traveling for
.... minutes.

Click here to see answer by greenestamps(13200) About Me 

Question 1092561: Kelsey biked from the mall to the movie theater at an average speed of 66 miles per hour, and then biked back the same way at an average speed of 88 miles per hour. If the round trip took 2 hours and 15 minutes, how many miles is Kelsey's one-way trip from the mall to the movie theater?
Round to the nearest hundredth.

Click here to see answer by jorel1380(3719) About Me 

Question 1092568: On a construction crew, Lionel set the crew record for laying carpet when he laid 1,410 square meters of carpet in 77 hours. Suppose Samara laid 220 square meters of carpet in 4.5 hours.
Complete the equation to model this situation where xx is the average speed Samara would need to maintain during the remaining 2.5 hours in order to tie Lionel's record.
1,410=
What speed (in square meters per hour) would Samara need to average during the remaining 2.5 hours to tie Lionel's record?
Samara would need to average .... square meters per hour.

Click here to see answer by jorel1380(3719) About Me 

Question 1092530: A fruit company delivers its fruit in two types of boxes: large and small. A delivery of 5 large boxes and 6 small boxes has a total weight of 108 kilograms. A delivery of 3 large boxes and 2 small boxes has a total weight of 5 kilograms. How much does each type of box weigh?
Click here to see answer by josmiceli(19441) About Me 

Question 1092522: A phone company offers two monthly plans. Plan A costs
$21
plus an additional
$0.14
for each minute of calls. Plan B costs
$8
plus an additional
$0.18
for each minute of calls.
For what amount of calling do the two plans cost the same?
What is the cost when the two plans cost the same?

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

Question 1092547: Find the missing coordinate to complete the​ ordered-pair solution to the given linear equation. y=5x+3
Click here to see answer by Fombitz(32388) About Me 

Question 1092593: find the equation of the line passing through P(4,-1) that is parallel to the line joining A(-5,2) and B(9,4). answer in general form
Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 1092646: graph 2x+y<3
Click here to see answer by ikleyn(52780) About Me 

Question 1092519: A phone company offers two monthly plans. Plan A costs
$21
plus an additional
$0.14
for each minute of calls. Plan B costs
$8
plus an additional
$0.18
for each minute of calls.

Click here to see answer by richwmiller(17219) About Me 
Question 1092519: A phone company offers two monthly plans. Plan A costs
$21
plus an additional
$0.14
for each minute of calls. Plan B costs
$8
plus an additional
$0.18
for each minute of calls.

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

Question 1092783: what formula tells the cost in dollars if chocolate chip cookies are $2.50/dozen and lemons frosted are $1.50/dozen? Let C= number of dozen chocolate chip cookies. L=number of dozens of lemons frosted. T=total change
Click here to see answer by jorel1380(3719) About Me 

Question 1092832: twice a number x plus 4 is at least 10 and no more than 16, for what values of x are these conditions satisfied
Click here to see answer by addingup(3677) About Me 
Question 1092832: twice a number x plus 4 is at least 10 and no more than 16, for what values of x are these conditions satisfied
Click here to see answer by ikleyn(52780) About Me 
Question 1092832: twice a number x plus 4 is at least 10 and no more than 16, for what values of x are these conditions satisfied
Click here to see answer by MathTherapy(10552) About Me 

Question 1092895: What is slope -1/4 passes through (12,-4)

Click here to see answer by Fombitz(32388) About Me 

Question 1092903: Graph the function f(x)=x2.
Click here to see answer by josmiceli(19441) About Me 

Question 1092939: Please help me with this question..
Why can't the first difference method be used to tell if the following data are linear? (1,3), (4,5), (5,7), (7,9)

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

Question 1093067: how do i detemine x intercept for x-2y=4 and how to graph it?

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

Question 1093094: vertical and horizontal line passing through the point (-9,-1) which one is horizontal and which one is vertical
Click here to see answer by Alan3354(69443) About Me 

Question 1093141: In planning her retirement, Liza deposits some money at 4.5% interest, with twice as much deposited at 5%. Find the deposited at each rate if the total annual interest income is $1450.
Click here to see answer by Theo(13342) About Me 

Question 1093160: Find the slope of the line containing (7,2) and (5,-4) also how did you get it?
Click here to see answer by Alan3354(69443) About Me 
Question 1093160: Find the slope of the line containing (7,2) and (5,-4) also how did you get it?
Click here to see answer by ikleyn(52780) About Me 

Question 1093163: Given f(x)=x+1 and h(x)= 2x-3, find (f-h)(x).
Click here to see answer by addingup(3677) About Me 
Question 1093163: Given f(x)=x+1 and h(x)= 2x-3, find (f-h)(x).
Click here to see answer by MathTherapy(10552) About Me 

Question 1093167: Given f(x)=x+1 and h(x)=2x-3, find (f+h)(x).
Click here to see answer by josgarithmetic(39617) About Me 

Question 1093166: The matrix shown is the augmented matrix of a system of three equations in the variables x and y. Solve for x and y.
3 1 0
-1 0 4
2 2 1

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

Question 1093164: Are the two equations -6+y=2x and 2y-4x12 dependent?
Click here to see answer by ikleyn(52780) About Me 
Question 1093164: Are the two equations -6+y=2x and 2y-4x12 dependent?
Click here to see answer by addingup(3677) About Me 

Question 1093175: x+y+z=-2 2x+8y+5z=5 x+2y-z=2 solve by row equivalent
Click here to see answer by Edwin McCravy(20054) About Me 

Question 1093276: solve for x:
4x+A=x
A is a matrix, A=(6 -3 -9)

Click here to see answer by Fombitz(32388) About Me 

Question 1093293: a-b=3005
a+b=7826
I'm so confused as to how to solve this and could use some help. Thanks in advance!

Click here to see answer by Alan3354(69443) About Me 
Question 1093293: a-b=3005
a+b=7826
I'm so confused as to how to solve this and could use some help. Thanks in advance!

Click here to see answer by josmiceli(19441) About Me 

Question 1093303: Y=5x-7
Click here to see answer by Alan3354(69443) About Me 

Question 1093366: How do I solve 12x+8y=4

Click here to see answer by richwmiller(17219) About Me 

Question 1093369: How do I solve 12x+8y=4

Click here to see answer by richwmiller(17219) About Me 

Question 1093416: pq²+q (p-1)-1
Click here to see answer by Alan3354(69443) About Me 

Question 1093442: What is the slope intercept form for the line that satisfies each set of conditions? Slope 3, passes through (1, -3)
Click here to see answer by Alan3354(69443) About Me 
Question 1093442: What is the slope intercept form for the line that satisfies each set of conditions? Slope 3, passes through (1, -3)
Click here to see answer by josmiceli(19441) About Me 

Question 1093395: Provide an example of two quantities that are linearly (or almost linearly) related. Are these quantities linearly related for all possible values of both quantities?
Thank you!

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

Question 1093494: |x+2|<7
Click here to see answer by Alan3354(69443) About Me 

Question 1093470: Hi appreciated tutors,
I cannot figure out this simple problem...
Tasha bought salads at $2.75 each and cartons of milk at $.80 each. The total cost was $16.15. How many of each did Tasha buy?
I tried to set the problem up like this:
X=number of salads, Y=number of milks
2.75X + .8Y = 16.15
X + Y = 3.55
I then tried to solve as a linear system problem but I just cannot get the correct values. The answers are X=5 and Y=3
Please help!! Thank you!!

Click here to see answer by ankor@dixie-net.com(22740) About Me 
Question 1093470: Hi appreciated tutors,
I cannot figure out this simple problem...
Tasha bought salads at $2.75 each and cartons of milk at $.80 each. The total cost was $16.15. How many of each did Tasha buy?
I tried to set the problem up like this:
X=number of salads, Y=number of milks
2.75X + .8Y = 16.15
X + Y = 3.55
I then tried to solve as a linear system problem but I just cannot get the correct values. The answers are X=5 and Y=3
Please help!! Thank you!!

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

Question 1093503: X -3 -1 0 2
Y

Click here to see answer by josgarithmetic(39617) 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, 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