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

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Question 62372This question is from textbook

: .6m+a=b solve for mThis question is from textbook

Click here to see answer by joyofmath(189)

Question 62366: This question is from a homework worksheet.
Write each equation in standard form.
y+3=2/5(x+9)
I am using ISBN 0-07-866766-6 Algebra 1 Glencoe Mathmatics as my text book, but I can't find any illustration that tells how to do this problem. PLEASE HELP
Click here to see answer by Earlsdon(4900)

Question 62382This question is from textbook

: p(t+1)=-2 solve for t This question is from textbook

Click here to see answer by stanbon(26297)

Question 62391This question is from textbook

: 2g-m=5-gh solve for gThis question is from textbook

Click here to see answer by stanbon(26297)

Question 62343This question is from textbook

: .6m+a=b solve for mThis question is from textbook

Click here to see answer by checkley71(8405)

Question 62339This question is from textbook

: 6c-t/7=b solve for cThis question is from textbook

Click here to see answer by 303795(562)

Question 62337This question is from textbook Algebra 1

: Find y so the line passing through the two points has the given slope.(Put values in slope formula and solve like ratios)
17) (1,y) and (4,1); m= 3This question is from textbook Algebra 1

Click here to see answer by 303795(562)

Question 62338This question is from textbook algebra 1

: This question is from textbook algebra 1

Click here to see answer by 303795(562)

Question 62413: If 2x - 3y = 0 and 3x + 2y = 13, find x + y. Do I solve for x and y and then just add them. Please show me.
Click here to see answer by 303795(562)

Question 62413: If 2x - 3y = 0 and 3x + 2y = 13, find x + y. Do I solve for x and y and then just add them. Please show me.
Click here to see answer by jai_kos(139)

Question 62419: 7x-4y=40
y-x=2
Click here to see answer by funmath(2873)

Question 62306: I am having trouble solving these systems. I get lost somewhere in the middle and it becomes a mess. Please help.
x-2y-3z=4
2x-4y+5z=-3
5x-6y+4z=-7
and
2x-y=-1
-2x+z=1
y-z=0
Thank you.
Click here to see answer by ankor@dixie-net.com(6693)

Question 62472: determine the equation of the line passing through the points (4,-3) and (-4,6)
Click here to see answer by checkley71(8405)

Question 62474This question is from textbook beginning algebra
: 5. 3X+Y=-8
5X-Y=-16
PLEASE EXPLAIN TO ME STEP BY STEP USING THE ELIMINATION BY ADDITION METHOD.This question is from textbook beginning algebra

Click here to see answer by checkley71(8405)

Question 62491: You are selling tickets for a musical at your local community college. Student tickets cost $5 and general admission tickets cost $8. If you sell 500 tickets and collect $3475, how many student tickets and how many general admission
Click here to see answer by stanbon(26297)

Question 62487This question is from textbook beginning algebra
: 21. 3X-2Y+-13
9X+5Y=16
I tried to solve this equation using the the process of elimination by addition method. I know I am surpose to use the lcm which i did for 3x and 9x the lcm would be 18 by using this method I still came up with the wrong answer the book has (1,5) can you tell me what I am doing wrong? thanksThis question is from textbook beginning algebra

Click here to see answer by stanbon(26297)

Question 62496: One type of gasohol is 10% alcohol and another type is 35% alcohol. How much of each type must be mixed to obtain 400 gallons of a 25% alcohol mixture?
Click here to see answer by checkley71(8405)

Question 62475: An angle and its components always have a sum of 90 degrees. The sum of the measures og the angle and five times its complement is 298 degrees. What is the measure of the angle?
Click here to see answer by 303795(562)

Question 62511This question is from textbook beginning algebra
: 13. 2x+3y=8
3x-2y+-1 I have the lcm as 1 for ea equation but the right answer is (1,2) last equation is right but the first one is incorrect. please helpThis question is from textbook beginning algebra

Click here to see answer by stanbon(26297)

Question 62571This question is from textbook beginning algebra
: 33. .2x=.3y-2
1.5y=x+.8
35. 0.5x+2y=1.15
-3x+0.4y=-0.7
I was having some problems with these two equation I know that I have to use 10 and multiply by the decimal number but the ans is off or incorrect. Please help me with this step by step. Thanks!!! This question is from textbook beginning algebra

Click here to see answer by funmath(2873)

Question 62581This question is from textbook beginning algebra
: 37. x/4-y/3=4
x/4-y/4=-1
39. 2/5x-1/6y=7/10
3/4x-2/3y=19/8
I tried solving these equations I know the lcd the first equation is 30 and 24 the lcm is 3,2 the book has the correct ans for 39 is (1/2,-3).
37 equation is alittle confusing or maybe I am making to difficult. please help me.This question is from textbook beginning algebra

Click here to see answer by stanbon(26297)

Question 62650This question is from textbook Algebra for college students
: hello
solve by graphing to show independent, inconsistent or dependent:

2x - 3y = 12
3y - 2x = -12
tks!This question is from textbook Algebra for college students

Click here to see answer by funmath(2873)

Question 62649This question is from textbook Algebra for college students
: Hello,
solve and how to determine if the system is independent, inconsistent or dependent:
y = 3x - 5
y = 3x +2
thks!This question is from textbook Algebra for college students

Click here to see answer by funmath(2873)

Question 62510This question is from textbook beginning algebra
: 13. 2x+3y=8
3x-2y+-1 I have the lcm as 1 for ea equation but the right answer is (1,2) last equation is right but the first one is incorrect. please helpThis question is from textbook beginning algebra

Click here to see answer by checkley71(8405)

Question 62120This question is from textbook beginning algebra
: THE INSTRUCTIONS SAYS: SOLVE THE SYSTEM OF EQUATIONS USING SUBSTITUTION METHOD
1. X=y+5
x-y+1
3. x-y+5
3x+2y+7
5. 2x-y+-5
4x+y=2
7. x+2y=9
x+2y+1
I AM VERY CONFUSED WORKING AND SOLVING THE SYSTEM OF EQUATIONS USING SUBSTITUTION METHOD.. HELP!! This question is from textbook beginning algebra

Click here to see answer by ankor@dixie-net.com(6693)

Question 62295This question is from textbook Algebra 1: Concepts and Skills

: Can you explain what it means to solve a linear system using the graph-and-check method?This question is from textbook Algebra 1: Concepts and Skills

Click here to see answer by ankor@dixie-net.com(6693)

Question 62708This question is from textbook beginning algebra
: 19. this cause for me to solve the system of equations using elimination by addition method this equation I had problems solving can you help me?
3x+5y=-19
6x+7y=-23
43. 2.1x-0.6y=8.4
-1.5x-0.3y=-6 this equation i used the 10 to change to a whole number and the answer was incorrect the book ans is (4,0)intersectingThis question is from textbook beginning algebra

Click here to see answer by 303795(562)

Question 62801This question is from textbook

: The inventor of a new product believes that the cost of producing the product is given by the function
C(x) = 1.75x + 7000
If the inventor charges $4 per unit, then her profit for producing and selling x units is given by the function P(x) = 2.25x - 7000
(a) What is her profit if she sells 2000 units?
(b) What is her profit if she sells 5000 units?
(c) What is the break-even point for sales?
This question is from textbook

Click here to see answer by funmath(2873)

Question 62878: Can u pease help me w/ the following problem... 4(3x-4)=8(17-8)
Click here to see answer by checkley71(8405)

Question 62900: help please!
Solve the equation for x and y. x+2y=-5 x=2y-1

choices are: (5,3) (5,0) (-3,-1) (1,-3)
Click here to see answer by praseenakos@yahoo.com(417)

Question 62900: help please!
Solve the equation for x and y. x+2y=-5 x=2y-1

choices are: (5,3) (5,0) (-3,-1) (1,-3)
Click here to see answer by funmath(2873)

Question 62820This question is from textbook beginning algebra
: 49. 9x-12y=18
2y=-x+1
47. X+Y=1
0.75X+0.5Y=2.21
When I tried to solve 47 according to the book my calulations are wrong the book ans is 6.84,-5.84 and for 49 the book ans is (8/5,-3/10 from both of these equation I got different ans. can you help me!!This question is from textbook beginning algebra

Click here to see answer by checkley71(8405)

Question 62919: find k so the system is inconsistent:
x-6ky=5k
(k+10)y=(k-1)x-(k+8)
thanks so much for your help!
Click here to see answer by venugopalramana(3286)

Question 62985This question is from textbook college algebra
: Determine if the following equations are linear.
3x + 2(x-4y)=2x-y
x-3 over 2 = 4+y over 5

x-2x^2+3= x-7 over 2

Determine the x and y intercepts of the following linear equations, if possible, and then graph the equations.
4x-3y=12 x+2y=7 y-x=x-y
This question is from textbook college algebra

Click here to see answer by stanbon(26297)

Question 63064This question is from textbook

: Solve the following systems by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent.
x + 5y = 10
-2x - 10y = -20
This question is from textbook

Click here to see answer by funmath(2873)

Question 63190: Please help with the following equation: The winner of a track meet had an average speed of 5m per sec. The second place runner had and average speed of 4.5m per sec. If the winner finished 2.2 seconds ahead of the second place runner, how long did it take the winner to cross the finish line.
Click here to see answer by stanbon(26297)

Question 63173: Simpliy: This is so complicated please help.
2/z^2 - 3/2 / 2/5z^2 + 1/3z
Click here to see answer by ankor@dixie-net.com(6693)

Question 63368: Write an equation in slop-intercept form for the line with the given condition that contains the point (6,-2): Parallel to the line 2x+y=5
Click here to see answer by venugopalramana(3286)

Question 63467This question is from textbook beginning algebra
: c. the instructions says to determine whether the pair of lines are parallel, perpendicular or neither
2x+3y=1
4x-5y=2
can you show me step by step how to determine whether these are parallel or perpendicular or neither.
thanksThis question is from textbook beginning algebra

Click here to see answer by stanbon(26297)

Question 63548This question is from textbook beginning algebra
: 3x+5y=1
4x-5y=2
2x+3y+5=0
Then instructions says to find the slope of the line.
I tried working these problems but I am not fully understanding what to do first. Can you give me a break down step by step how to do these problems. thanks so much for your help.This question is from textbook beginning algebra

Click here to see answer by venugopalramana(3286)

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