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

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Question 61449: How do you find the slope of a line through (1,3) and (-2,5)
Also, how do you find the slope of a parallel line passing (1,5) and (-1,0)
Click here to see answer by funmath(2933)

Question 61280: To be quite honest I am not sure what the teacher is wanting here. We were on Algebra Linear equations and he threw these word problems in as credit. Your help will be very much appreciated. We are supposed to solve the problem. I don't even know where to start. Please help.
A river boat can head 340 miles up-river in 19 hours, but the return trip takes only 14 hours. Find the current of the river and find the speed of the ship in still water to the nearest tenth of a mph.
Thank You very much for your time and efforts. I really appreciate it!
Click here to see answer by ankor@dixie-net.com(22740)

Question 61536: I do not know the steps in graphing the following
X-Y=6
NEED A RESPONSE AS QUICKLY AS POSSIBE AS I AM PREPARING FOR A TEST SHORTLY
THANKS CARMEN
Click here to see answer by tutorcecilia(2152)

Question 61569: I am supposed to solve the system 2x-y=6 and -4x+2y=9 by addition. I am so confused. Please help me. Thank you.
Click here to see answer by stanbon(75887)

Question 61484: Please help me solve the problem below by addition, substituting and graphing...
4x - 6y = 12
2x + 2y = 6
Thank you for your help
Click here to see answer by rchill(405)

Question 61551: What could be the system of linear equations for this problem if i want to use elimination or substitution?
while on vacation, kevin went for a swim in a nearby lake. swimming against the current, it took him 8 minutes to swim 200 meters. swimming back to shore with the current took half as long. what is kevins average swimming speed and speed of lake's current? i'd like to use variables x and y.
Click here to see answer by ankor@dixie-net.com(22740)

Question 61650: -2x+3=5
Click here to see answer by DJ_Sammie(24)

Question 61642: p/7=-14
Click here to see answer by tutorcecilia(2152)

Question 61762: what is the value of g in 8 - g = 10 and how did you get that answer?

Click here to see answer by stanbon(75887)

Question 61777: what is the value of p in 6p-7=2p+7 and how did you get that answer?
Click here to see answer by jai_kos(139)

Question 61549: how would i make a system of linear equations for the following problem when i want to use either the elimination or substitution method?
On a canoe trip, Rita paddled upstream (against the current) at an average speed of 2 mi/h relative to the river bank. on the return trip downstream (with the current), her average speed was 3 mi/h. find rita's paddling speed in still water and the speed of the river's current.
Click here to see answer by ankor@dixie-net.com(22740)

Question 61810: You are selling tickets for a musical at your local community college. Student tickets cost $5 and general admision tickets cost $8. If you sell 500 tickets and collect $3475, how many student tickets and how many general admission. Thank you for your help and time .
Click here to see answer by Nate(3500)

Question 61808: Maria's scores for two games in bowling were 129 and 144. What must be her lowest score in the next game in order to have an average greater than 140 for the three games?
Click here to see answer by Nate(3500)

Question 61806: The sum of two consecutive numbers is less than 92. Find the pair with the greatest sum. Thank you for your help!
Click here to see answer by Nate(3500)

Question 61805: Can you help me with this problem please! : The length of a rectangle is 4 cm less that three times its width. If the length is increased by 8 cm and the width is decreased by 2 cm, the perimeter will be 100 cm. Find the dimensions of the original rectangle.
Click here to see answer by Nate(3500)

Question 61809: Merlin has 20 coins in quarters and dimes. The total value of the coins is $3.95. How many coins of each kind does it have? Thank you for you help time!
Click here to see answer by josmiceli(19441)

Question 61787: The math club and the science club had fund raisers to buy supplies for a hospice. The math club spent $135 buying six cases of juice and one case of bottled water. The science club spent $110 buying four cases of juice and two of bottled water. How much did the case of juice cost? How much did a case of bottled water cost?
Click here to see answer by Bonycells(3)

Question 61779: how would i write a system of two inequalities for dis problem?
suppose you need to use at least $1.00 worth of stamps to mail a package. you have as many $.03 stamps you need but only four $.32 stamps. How many of each stamp can you use? lets say i use da variables x and y. x=# of $.03 stamps used. and y=# of $.32 stamps used. would the equation be: .03x+.32y >or equal to 1.00??? what could be anoder equation since i need 2??
Click here to see answer by stanbon(75887)

Question 61939: please help me with this problem
complete the following table for the equation y=6x-5
[x][-3][-1][ ][ ]
[y][ ][ ][2][4]
Click here to see answer by uma(370)

Question 61909: Find the point P where the line x = 1 + t, y = 2t, z = -3t intersects the plane x + y - z = -1.

Click here to see answer by Nate(3500)

Question 61967: what is the value of p in 8-3p=13-5 and how did you get that answer?
Click here to see answer by uma(370)

Question 61967: what is the value of p in 8-3p=13-5 and how did you get that answer?
Click here to see answer by funmath(2933)

Question 61970: what is the value of p in 8-3p=13-5p and how did you get that answer?
Click here to see answer by checkley71(8403)

Question 61671: Plot and solve (Identify solution sets) the following systems:
{2x=4+y and y/2=-x+2}
Click here to see answer by uma(370)

Question 61904: Pleassse help with this question!
Find the point P where the line x = 1 + t, y = 2t, z = -3t intersects the plane x + y - z = -1.
P = ( , , )

Click here to see answer by jai_kos(139)

Question 61908: Find the distance from the point Q(-3,-3,-8) to the line which passes through the point P(-7,-7,2) and is parallel to the line whose equation is:
(x,y,z) = (-3,-1,0) + t(2,2,-2).
Thank you!

Click here to see answer by venugopalramana(3286)

Question 61906: please help asap! love you guys!
Find the distance from the point P=(0,0,4) to the line which passes through the points Q=(5,5,3) and R=(0,0,-2).

Click here to see answer by venugopalramana(3286)

Question 61973: what is the value of x in 8x+7=3x-33 and how did you get that answer?
Click here to see answer by jai_kos(139)

Question 62057: what is the value of y in 11y+3=4y+19 and how did you get that answer?
Click here to see answer by uma(370)

Question 62070: please help me solve this problem: What is the slope of the following line:
y=4/9x+5
Click here to see answer by stanbon(75887)

Question 62095: what is the value of t in 13t+15=9t+1
Click here to see answer by Earlsdon(6294)

Question 62095: what is the value of t in 13t+15=9t+1
Click here to see answer by stanbon(75887)

Question 62095: what is the value of t in 13t+15=9t+1
Click here to see answer by Edwin McCravy(20055)

Question 62110: please help
which of the following ordered pairs are solutions of 4x-3y=27
-5,3
3,6
12,153/4
-1,73/4
0,63/4
93/4,0
Click here to see answer by stanbon(75887)

Question 62116: please help
find an equation for the line that contains the point (3,5) and has slope m=-4.
Express the equation in slope-intercept form.
Click here to see answer by funmath(2933)

Question 62111: Please help
find the x and y intercepts of the line with the equation 4x-5y=20
find the slope of the line through the points(-3,6) and (5,2)
Click here to see answer by funmath(2933)

Question 62173: what does 3a+4=7 anwer and show me the steps

Click here to see answer by checkley71(8403)

Question 62218: Hello,
How to find the equation in standard form with integral coefficients?

The line with y-intercept (0,3) and slpe - 1/2
thank you.
Click here to see answer by stanbon(75887)

Question 62223: hello,
with the substitution method, how to solve:
x = y + 5
2x - 2y = 12
thank you.
Click here to see answer by Cintchr(481)

Question 62222: hello,
with the substitution method, how to solve:
y = 3x + 11
3x + 3y =0
thank you!
Click here to see answer by Cintchr(481)

Question 62216: HI
how to find the midpoint and length of the line segment with endpoints (2,0) and (-3,-1).
Thank you
Click here to see answer by venugopalramana(3286)

Question 62216: HI
how to find the midpoint and length of the line segment with endpoints (2,0) and (-3,-1).
Thank you
Click here to see answer by kapilsinghi(68)

Question 62213: Hello,
Can you please help me find the slpe of the line through each pair of points.
(-5,6), (-2,9)
Thank you,
Click here to see answer by venugopalramana(3286)

Question 62220: hello,
how to solve by graphing:
2x - 3y = 12
3y - 2x = -12
thank you.
Click here to see answer by stanbon(75887)

Question 62215: Hello
How to graph this equation?
y = 2x - 3
Thanks.
Click here to see answer by tutorcecilia(2152)

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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