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

Tutors Answer Your Questions about Linear-systems (FREE)

Question 406284: why is my penis small?
Click here to see answer by Alan3354(30958)

Question 406309: solve the system of equations by graphing then classify the system
y=-x-15
9x-8y=-16
Click here to see answer by Alan3354(30958)

Question 406311: solve by the substatution method
7x-8y=-35
7x+84=y
Click here to see answer by Alan3354(30958)

Question 406332: I have a question about linear systems using substitution.
How do solve:
x=6-4y
and
2x-3y=1

Click here to see answer by Alan3354(30958)

Question 406332: I have a question about linear systems using substitution.
How do solve:
x=6-4y
and
2x-3y=1

Click here to see answer by stanbon(57219)

Question 406419: how can i solve this system of equation by subtraction
4x-y=41
2x+y=25
Click here to see answer by stanbon(57219)

Question 406498: How do you solve y=6-2x
5y+8x=20
Click here to see answer by mananth(12270)

Question 406522: There are 1712 students at Fitch. There are 72 more girls than boys. How many girls are there?
Click here to see answer by rfer(12644)

Question 406578: -8x+3y=-33
5x+y=35
Solve?
Click here to see answer by mananth(12270)

Question 406744: Solve system of equations
X+3y-2z=-9
6x-4y+3z=29
2x+2y+z=13
Click here to see answer by ewatrrr(10682)

Question 406753: Solve by the substitution method.
5x+4y=6
x=22-6y
Click here to see answer by algebrahouse.com(1079)

Question 406813: My problem is 3x-2y=11 My x is 5 and my y is 2.
3[5]-2[2]=11
15-4=11
11=11
Click here to see answer by ewatrrr(10682)

Question 406878: Can some one tell me how to figure out this problem
(1,2)
y=2x
y-x=1
Click here to see answer by Alan3354(30958)

Question 406950: Im studying right now in College Algebra... parallel and perpendicular lines
I'm stuck on one of those questions. The instructions says to find the equation of the line satisfying the given conditions, giving it in slope-intercept form if possible.
Through (1,6) perpendicular to 3x+5y=1
I know that this is the answer, because a friend tried explaining it to me but I still don't understand how she got this answer.
y=5/3x+13/3
can you please help me
Click here to see answer by lwsshak3(6460)

Question 407346: i have to solve this linear system and write it as a ordered pair. can you help?
y=2x+7
3x-y=9
Click here to see answer by katealdridge(100)

Question 407336: System of equations.
x+y=3
2x+y=4
Click here to see answer by jim_thompson5910(28476)

Question 407001: substitution method:
x=y-1
y=4-2x?
Click here to see answer by ewatrrr(10682)

Question 407506: the sum of two numbers is 70. the difference between these numbers is 24. find the two numbers.
Click here to see answer by jim_thompson5910(28476)

Question 407511: solve by the substatution method
2x+4y=26
-2x+y=19
the solution is ______________
Click here to see answer by jim_thompson5910(28476)

Question 407537: in the 1920 the record for a certain race was 46.3 sec. in 1930 it was 46.1sec. let R(t)= the record in the race and t= the number of years since 1920 .

a)find a linear function that finds the data
b)use the function in a) to predict the record in 2003 and 2006
c)find the year when the record will be 44.50
Click here to see answer by graphmatics(170)

Question 407684: How many integers are solutions of 1.2 < x < 6.9
Click here to see answer by richard1234(5390)

Question 407728: The video store has a basic charge for a 3-day rental and a different per-day late fee. Nate was one day late and paid $5.50 in all for his video. Gina was four days late and paid $10.00 in all for her video. What is the basic fee and the per-day late fee that the store charges?
Click here to see answer by graphmatics(170)

Question 407761: how do you solve 5x-7y=9,4x-3y=33
Click here to see answer by Tatiana_Stebko(1326)

Question 407761: how do you solve 5x-7y=9,4x-3y=33
Click here to see answer by mananth(12270)

Question 408039: (1 pt) Solve the equation
2x − 5y + 5z = 11.
Click here to see answer by richard1234(5390)

Question 408182: How do I solve this equation?
12c + 8.25(55 – c) = 585
Click here to see answer by ewatrrr(10682)

Question 408217: i need an example of a distance, a chemistry, and a "heads and legs" word problem and the answers. my teacher was talking about them and i didnt know what they were
Click here to see answer by josmiceli(9647)

Question 408312: how do I solve by addition. the second equation of the system has me stumped. How do I elimated one?
5x-7y=2
3x=4y
Click here to see answer by algebrahouse.com(1079)

Question 408373:
Click here to see answer by cesardelrosario(3)

Question 408380: x+y=4
y=3x
Click here to see answer by cesardelrosario(3)

Question 408453: heyy im amina i was just wondering how do slove this
3x+2y=5
5x-2y=7
Click here to see answer by ankor@dixie-net.com(15623)

Question 408505: Find the center and radius of the circle: x^2+y^2=9 (I think it's (0,0) with a radius of 3)
Click here to see answer by scott8148(6628)

Question 392464: can u help me with an equation plz the equation is:
x
- - 2=6
2
Click here to see answer by Stargal510(1)

Question 408741: A planes flies south at 192mph. Two hours later another plane leaves at 960mph. when will the second plane pass the first plane.
Click here to see answer by ewatrrr(10682)

Question 408581: use the substitution method to determine the solution of the system of linear question:x+y=8 y=3x
Click here to see answer by ewatrrr(10682)

Question 408700: 586 people attend a banquet at Disney. residents paid $12.95 and non-residents paid $17.95. if Disney made $9423.70 from ticket for the event, how many residents and non-residents attended? I can't seem to solve this problem.
Click here to see answer by ewatrrr(10682)

Question 408916: Solve by substitution method
y=40+0.25x
y=35+0.30x

Click here to see answer by ilovezvezda(1)

Question 408916: Solve by substitution method
y=40+0.25x
y=35+0.30x

Click here to see answer by Blued0517(1)

Question 409165: 24-6y > -2(y+6)

Click here to see answer by Adrish(44)

Question 409604: A tennis club charges an annual fee and a hourly fee for court time. One year, Tony played for 39 h and paid $384. Sandra played for 51 h and paid $456. Find the annual fee and the hourly fee.
Click here to see answer by nerdybill(6948)

Question 409871: what is 9-3t=17+t
Click here to see answer by fractalier(2101)

Question 410190: How to solve

Click here to see answer by solver91311(16868)

Question 410184: I need to solve this equation using the graphing method.
6x + 4y =2
3x + 2y =1
Click here to see answer by checkley79(3039)

Question 410262: Jorge plans to have an ice cream stand. His cost will be $225 to rent the cart and 50 cents for each ice cream sandwich. He plans to sell them for $1.25 . How many sandwiches will he have to sell in order to break even?
Click here to see answer by rfer(12644)

Question 410101: Please help me solve this system of equations by the addition method:
6x+9y=-41
15x-6y=40
I tried to solve the problem but I came up with using a different number for each equation. I know you have to use the same number for both equations.
Thanks for your help!
Vanessa
Click here to see answer by ankor@dixie-net.com(15623)

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