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

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Question 301985: solve using the elimination method.
3x+5y=4
-2x+3y=10
Click here to see answer by london maths tutor(243)

Question 301982: solve using the elimination method.
4a+6b=-1
a-3b=2
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Question 301997: A temperature of 10 degrees corresponds to a temperature of 50 degrees. Also 40 degrees corresponds to 104 degrees. Find the linear equation relating F and C.
Click here to see answer by nerdybill(6948)

Question 302003: solve each system using the substitution method.
x=y-5
2x+5y=4
Click here to see answer by london maths tutor(243)

Question 302029: y=4x+8 find slope and y intercept
Click here to see answer by london maths tutor(243)

Question 302041: Here's another accuplacer practice question that I have no clue about: "write the slope intercept form of the equation (-2,0)and (7,4). The answer that lights up correct is Y=4/9x + 8/9. Can someone tell me why this is correct, and in general , how to write slope intercept forms? Thanks lots.
Click here to see answer by london maths tutor(243)

Question 302040: Here's another accuplacer practice question that I have no clue about: "write the slope intercept form of the equation (-2,0)and (7,4). The answer that lights up correct is Y=4/9x + 8/9. Can someone tell me why this is correct, and in general , how to write slope intercept forms? Thanks lots.
Click here to see answer by josmiceli(9645)

Question 302053: Graph the equation by plotting points
63-9y=0

Click here to see answer by richwmiller(9132)

Question 302121: SLOPE=0 INTRCEPT=20
Click here to see answer by richwmiller(9132)

Question 302039: Here's another accuplacer practice question that I have no clue about: "write the slope intercept form of the equation (-2,0)and (7,4). The answer that lights up correct is Y=4/9x + 8/9. Can someone tell me why this is correct, and in general , how to write slope intercept forms? Thanks lots.
Click here to see answer by scott8148(6628)

Question 302038: Here's another accuplacer practice question that I have no clue about: "write the slope intercept form of the equation (-2,0)and (7,4). The answer that lights up correct is Y=4/9x + 8/9. Can someone tell me why this is correct, and in general , how to write slope intercept forms? Thanks lots.
Click here to see answer by richwmiller(9132)

Question 302015: Please help: A total of 507 tickets were sold for the school play. There were 57 more student tickets sold than adult tickets. How many tickets were sold? Thank you in advance.
Click here to see answer by mananth(12269)

Question 302161: Tickets to a concert were sold to adults for $3 and to students for $2. If the total receipts were $824 and twice as many adult tickets as student tickets were sold, then how many of each were sold?
Click here to see answer by london maths tutor(243)

Question 302020: solve each system using the substitution method.
x-2y=7
3x-21=6y
Click here to see answer by london maths tutor(243)

Question 302319: y = -2/3x =4, graph and identify the y intercept. Thank you.
Click here to see answer by Alan3354(30924)

Question 302337: Find the equation of the linear function which passes through the points (0,5) and (-3, 20)
Click here to see answer by jim_thompson5910(28476)

Question 302404:
Click here to see answer by Alan3354(30924)

Question 302516: How do you solve this problem by substitution? y=x-4
y=2x
Click here to see answer by richwmiller(9132)

Question 302529: solve:

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Question 302578: y = 5x + 3
Click here to see answer by richwmiller(9132)

Question 302582: what is the y intercept of y=3x-9
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Question 302584: Find an equation of the line containing the given pair of points. Express your answer in the form x=a, y=b, or y=mx+b. (-4,-4,) and (2,2). What is an equation of the line?
Click here to see answer by richwmiller(9132)

Question 302605: At the local convenience store, 3 bags of chips and 2 container of dip cost $9. However, 5 bags of chips and 7 containers of dip cost $26. What is the cost of one bag of chips and one container of dip?
Click here to see answer by london maths tutor(243)

Question 302616: Here's another accuplacer practice question that I have no clue about: "write the slope intercept form of the equation (-2,0)and (7,4). The answer that lights up correct is Y=4/9x + 8/9. Can someone tell me why this is correct, and in general , how to write slope intercept forms? Thanks lots.
Click here to see answer by nerdybill(6948)

Question 302786: 2x + 3y = 9

Click here to see answer by JBarnum(2044)

Question 302754: FIND THE SLOPE OF THE LINE THROUGH EACH PAIR OF POINTS (14,0),(-10,-20)

Click here to see answer by checkley77(12569)

Question 302805: how do you solve 4= x-y
Click here to see answer by solver91311(16868)

Question 302961: The width of a rectangular lot is 75% of its length. If the perimeter is 700 meters, then what is the width and length?
Click here to see answer by mananth(12269)

Question 302959: twice the sum of a number and 3 is equal to three times the difference of the number and 2. Find the number
Click here to see answer by checkley77(12569)

Question 302916: Here is more of the same, an accuplacer practice. 3/10x plus 9/14x^2
ie 3 over 10x plus 9 over 14x squared = ? The correct answer is 3(7x+15) over 70x squared. How to get there, I don't know. With apologies beforehand to London Maths Tutor and others, I should point out that I'm kind of dense. So if anybody tackling this one could include and explain steps in the process even if they seem blindingly obvious, that would be super! Thanks much, Mike
Click here to see answer by ankor@dixie-net.com(15622)

Question 303088: which point lies on the graph
y/3 + 2=-x
Click here to see answer by Fombitz(13828)

Question 303179: 8-1/4x>4 i cant figure this problem out an i have been working on it for two hours please help me?!
Click here to see answer by scott8148(6628)

Question 303239: 2. Write the slope intercept from the equation that passes through the points (2,7) and (-1,-11).
Click here to see answer by texttutoring(324)

Question 303248: Write the equation of the line that is perpendicular to the line: y=2x-3 and passes through the point (-2,2).
Click here to see answer by texttutoring(324)

Question 303238: Write the equation of the line that is parallel to the line: y=2x-3 and passes through the point (1,4).
Click here to see answer by Fombitz(13828)

Question 303243: Find the slope and y-intercept of the line 9x-3y=54.
Click here to see answer by Fombitz(13828)

Question 303242: 3. Write the slope intercept form of the equation that passes through the point (-1,4)with m=-5
Click here to see answer by london maths tutor(243)

Question 303245: Find the slope of the line passing through the points A(-2,-5)and B(-1,-3).
Click here to see answer by rfer(12644)

Question 303340: Determine whether (-2,-6) is a solution of
2x+y<-10
Click here to see answer by jim_thompson5910(28476)

Question 303413: Calculating the slope of a line-How do you know if a slope is negative or positive.I know it says if the graph goes up from left to right, the slope is positive. If the line goes down from left to right, the slope is negative but looking at the graph I do not understand how to tell.
Click here to see answer by Edwin McCravy(8878)

Question 303446: what is slope? I dont understand anything about slope. I understand a little bit about the rise and run and also about the equation but I need some help. Thank you so much for your help.
Click here to see answer by Alan3354(30924)

Question 303502: Can I use the identity property for a Linear Equation
Click here to see answer by richwmiller(9132)

Question 303503: How do you find a solution to a system?
Click here to see answer by richwmiller(9132)

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