Questions on Algebra: Systems of Linear Equations answered by real tutors!

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Question 454661: Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 mile per hour and B is traveling at 100 miles per hour. Train A passes a station at 7:25 P.M. if B passes at 7:40 P.M. what time will train B catch up to train A?
Click here to see answer by mananth(16946)

Question 454671: true or false?
2x - y = 3 is a linear equation in standard form?
Click here to see answer by ptaylor(2198)

Question 454673: use multiplication with the addition-or-subtraction method to solve the system:
5x + 2y = 14
3x - 5y =27
Click here to see answer by mananth(16946)

Question 454820: For this system of linear equation please determine how many solutions exist, use either elimination or substitution to find the solutions and graph the two lines, labeling the x and y intercepts and points of intersection for the following equation: x=y=3 and y=x+3
Click here to see answer by richwmiller(17219)

Question 454821: For this system of linear equation
Click here to see answer by richwmiller(17219)

Question 454818: For this system of linear equation
Click here to see answer by richwmiller(17219)

Question 454841: the expression (xsquared-2x-6)-(-6xsquared-4x-5)is equivalent to?
Click here to see answer by richwmiller(17219)

Question 454936: find the solution of system of equations seperate x and y
x-2y=-23
x-y=7
Click here to see answer by Alan3354(69443)

Question 454952: graph the equation using the slope and the y-intercept
y=4/3x+2
Click here to see answer by algebrahouse.com(1659)

Question 455015: Solve the system of equations;
If you cannot find a solution, label the lines as parallel or coinciding and explain why.
3x-y=2
16x-5y=11
Click here to see answer by MathLover1(20850)

Question 455163: Solving:
-2 x-3y = 14
5 x-5y = 15

Using Substitution Method.

Click here to see answer by siddhant(1)

Question 455468: how do you solve linear equations?
Click here to see answer by MathLover1(20850)

Question 455586: i want to find out how to solve these two equations using combination
3x-4y=10
3x+6y=30
Click here to see answer by Alan3354(69443)

Question 455901: Can someone please solve using the substitution method?
6x+6y=30
-8x+y=41

Click here to see answer by richwmiller(17219)

Question 456037: how do you find the slope of 4x+20y=5?
Click here to see answer by rfer(16322)

Question 456037: how do you find the slope of 4x+20y=5?
Click here to see answer by edjones(8007)

Question 456045: Trying to help my son but it's been waaaay too long ago:
x^2 + y^2 +4x - 6y -3 = 0
Click here to see answer by lwsshak3(11628)

Question 456052: What is the slope-intercept form of the equations of the line through the given point with the given slope:
(-3,-1), slope=2
(-2,2), slope= - 7/2
Click here to see answer by oberobic(2304)

Question 456460: Can you please help me solve this linear inequality step by step. 5x-1<17-2x
Click here to see answer by zeti68(10)

Question 456482: what is the common solution for the three linear equation x-y=4,x+y=6,x-5y=0
Click here to see answer by Alan3354(69443)

Question 456630: Anna bought two melons and one pineapple for $8.96. If she had purchased one melon and two pineapples, she would have spent $1.49 more. What is the price of a melon? of a pineapple?
Click here to see answer by htmentor(1343)

Question 456740: determine whether the given ordered pair is a solution
(7/25, -1/25)
4x+3y=1
Click here to see answer by stanbon(75887)

Question 456740: determine whether the given ordered pair is a solution
(7/25, -1/25)
4x+3y=1
Click here to see answer by richwmiller(17219)

Question 456766: solve the equation for x, 3x+15y=-24
Click here to see answer by MathLover1(20850)

Question 456723: Please help me solve these systems of equations using any algebra:

Thanks in advance!
Click here to see answer by MathLover1(20850)

Question 457069: y= -3/5x
x-2y= -22
so what would be the solution to the system of equations?
Click here to see answer by Alan3354(69443)

Question 457165: What is the difference between the solution of a system of linear inequalities? Explain your answer and show with system and graph.
Click here to see answer by Alan3354(69443)

Question 457193: how do u solve this equation ok so here is the sentance complete the solution of t he eqation find the value of y when x=28
x+3y=28 please help me solve this problem!
Click here to see answer by stanbon(75887)

Question 457391: solve 4x-1=3+3x
Click here to see answer by richwmiller(17219)

Question 457461: Solve by the addition method. (If the solution is inconsistent, enter INCONSISTENT. If the equations are dependent, give the answer in terms of x.)
9x + 3y = 6
6x + 2y = 5
Click here to see answer by Edwin McCravy(20056)

Question 457532: Can someone help me solve the solution of the system using the substution method?
8x -9y = 16.5
7y - 2x = -6.5
Click here to see answer by mananth(16946)

Question 457528: Can someone help me solve the solutin of the system using the elemination method?
5x + 2y = -11
7x - 3y = 13
Click here to see answer by mananth(16946)

Question 457531: Can someone help me solve the solution of the system using the elemination method?
0.3x - 0.2y = 4
0.5 + 0.5y = 45/23
Click here to see answer by mananth(16946)

Question 457527: Can someone help me solve the solution of the system by using the elimination method to find the solution?
x + 5y = 20
-x + 8 = 19
Click here to see answer by mananth(16946)

Question 457525: Can someone help me solve this problem by substituion method to come up with the solution?
5m + n = 29
m = 6n = 12
Click here to see answer by Alan3354(69443)

Question 457524: Can someone help me solve this problem by elimination to come up with the solution?
0.05x + 0.25y=44
0.15x + 0.05y=48
Click here to see answer by richwmiller(17219)

Question 457514: I need to know how to solve this linear equation: 8r + 17 = 65
Click here to see answer by richard1234(7193)

Question 458142: Solve for N
S = 5NT - TS + NS
Click here to see answer by nerdybill(7384)

Question 458162: i need help.
write a system of equations.
an errand boy went to deposit some bills for his employer. some were one-dollar bills and the rest were five-dollar bills. the total value of the bills was $86 and the number of bills was 38. Find the number of each kind of bill.
Click here to see answer by htmentor(1343)

Question 458164: i need help.
write a system of equations.
The receipts from 300 tickets for a high school program were $650. Adults were charged $2.50 each and the students $1.50. How many tickets of each kind were sold?
Click here to see answer by rfer(16322)

Question 458237: How do you contain linear equations with constants in denominators in a problem? Can you give me an example please?
Click here to see answer by Alan3354(69443)

Question 458240: Which point lies on the LINE REPRESENTED BY THE EQUATION BELOW?
7x+6y=42
a)1,7
b)1,6
c)0,6
D)0,7

Click here to see answer by stanbon(75887)

Question 458260: Describe what the graph of interval (-4,10] looks like.
Click here to see answer by Edwin McCravy(20056)

Question 458275: how do i find the system of equations to this problem: julia went to the movies and bought one jumbo popcorn and two chocolate chip cookies for $5. marvin went to the same movie and bought one jumbo popcorn and four chocolate chip cookies for $6.How much does on chocolate chip cookie cost?
PLEASE HELP!!!!
Click here to see answer by mananth(16946)

Question 458342: which eqaution will result if the substitution method is used to solve the following system of linear equations? x plus y equals six x=yplus two
Click here to see answer by richard1234(7193)

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