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

Tutors Answer Your Questions about Linear-equations (FREE) Get help from our free tutors ===> Algebra.Com stats: 2013 tutors, 419644 problems solved View all solved problems on Linear-equations -- maybe yours has been solved already! Become a registered tutor (FREE) to answer students' questions. Click here to see problems AND answers on one page Question 183846: How do you find the slope with 4 temperatures using the Arrhenius equation? Click here to see answer by stanbon(57347)   Question 183854: find four solutions for this equation: y=1/3x+1 write the solutions as ordered pairs Click here to see answer by solver91311(16885)   Question 183856: find four solutions for this equation: 2x+3y=12 write the solutions as ordered pairs Click here to see answer by solver91311(16885)   Question 183859: write an equation in point-slope form of the line that passes through the given point and has the given slope (1,9); M= -3 Click here to see answer by solver91311(16885)   Question 183932: How to graph the equation 2x+y=-6 Click here to see answer by jojo14344(1512)   Question 183948: -[5r-(8r+6)]=6(r-5)-12 Click here to see answer by stanbon(57347)   Question 184020: Please help with this problem: 4/5x + 4/5 = 2/21x + 13/7 solve for x Click here to see answer by stanbon(57347)   Question 183691: what are all the answer. Click here to see answer by Alan3354(30993)   Question 184051: How do I graph the cubic equation of y=x^3 (x to the third) Click here to see answer by HyperBrain(694)   Question 184147: The height of Kegan Falls in Japan is 11/8ths the height of Radiar Falls in Wales. The sum of the heights of these two waterfalls is 570ft. Find the height of each. Click here to see answer by stanbon(57347)   Question 184148: Find the equation of a line with a slope of 4 and passing through(-2,7) Click here to see answer by Alan3354(30993)   Question 184149: I'm unsure on how to explain the basic method for graphing a linear equation and I need to show an example of a linear equation and how I would graph it. Click here to see answer by Alan3354(30993)   Question 184192: What is the equation of the line passing through the points (-3,0) and (0,-3)? Click here to see answer by jim_thompson5910(28595)   Question 184265: i am struggling with linear graphing. Please help me graph the following exersise. y=-3x-7 15x+5y=-35 thank you Click here to see answer by checkley77(12569)   Question 184288: how do you do the x-intercept Click here to see answer by stanbon(57347)   Question 183861: How do you solve this linear system by using substitution? x= 6-4y 2x-3y=1 Click here to see answer by jojo14344(1512)   Question 184329: Suppose that pure alcohol is added to a 24% alcohol mixture. Which one of the following concentrations could not be obtained? A.22% B.26% C.28% D.30% Click here to see answer by Alan3354(30993)   Question 184333: y-1=-2(x-4) Click here to see answer by jim_thompson5910(28595)   Question 184371: how would i solve thge system of equations using substition method? 3=5x-3y+10 & y=2x+4 ???? Click here to see answer by solver91311(16885)   Question 184371: how would i solve thge system of equations using substition method? 3=5x-3y+10 & y=2x+4 ???? Click here to see answer by Alan3354(30993)   Question 184401: at what points does the graph of y=2x^2-4x-16 intersect the x-axis? Click here to see answer by josmiceli(9678)   Question 184410: My question is..... The formula y = 2.205x converts a mess x in kilograms to a weight y in pounds. A sports car has a mass of 1270 kilograms. What is its weight in pounds? Click here to see answer by checkley77(12569)   Question 184483: 2. For the systems of linear equations in questions 1-3 - Determine how many solutions exist - Use either elimination or substitution to find the solutions (if any) - Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection 2x + 3y = 8 and 3x + 2y = 7 help is much appreciated! G Click here to see answer by josmiceli(9678)   Question 184485: A university bookstore recently sold a wirebound graph-paper notebook for $2.50, and a college-ruled notebook for $2.30. At the start of spring semester, a combination of 50 of these notebooks were sold for a total of $118.60. How many of each type were sold? thank you. Click here to see answer by checkley77(12569)   Question 184523: A line that passes through (7,3) and has a slope of -1. What I've done so far y= 2/3(-1)-4 y=2/3(3/2)=6/6= 1 - 4 = -3 (7,3) and (1,-3) Click here to see answer by Alan3354(30993)   Question 184600: Find the slope of the line being described. Graph all lines. Perpendicular to 6x-4y=16 and thru (-4,6) Click here to see answer by jim_thompson5910(28595)   Question 184610: Please help me solve: Slope 2/3; through (-9, 4) using point slope fomula Click here to see answer by vleith(2825)   Question 184650: Write an equation in standard form with integer coefficients for the line with slope 13/19 going through the point (-2,-1) What is the equation of the line Click here to see answer by ankor@dixie-net.com(15652)   Question 184650: Write an equation in standard form with integer coefficients for the line with slope 13/19 going through the point (-2,-1) What is the equation of the line Click here to see answer by solver91311(16885)   Question 184650: Write an equation in standard form with integer coefficients for the line with slope 13/19 going through the point (-2,-1) What is the equation of the line Click here to see answer by josmiceli(9678)   Question 184683: 2x+ 5y = 16 5x-2y=11 How to Graph each system of equation then determine if the systme has one solution or no solution or infinity many solution Click here to see answer by stanbon(57347)   Question 184691: Write a linear equation in two variables that are satisfied by (-3,5). Are the equations independent or dependent? Click here to see answer by solver91311(16885)   Question 184702: Find an equation of the linear equation of the line satisfying the given conditions. Give answer in slope-intercept from if possible Passing through (2,-8) and parallel to x= 2 Please i want the answer with steps, Thankss Click here to see answer by vleith(2825)   Question 184721: solve using substitution method 4=3x-5 4x+y=23 Click here to see answer by Alan3354(30993)   Question 184719: 2. - Determine how many solutions exist - Use either elimination or substitution to find the solutions (if any) - Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection 0.2x + 0.4y = 1.7 and 8.3x - 6.3y = -4.3 need help desperately! Thank you. Click here to see answer by ankor@dixie-net.com(15652)   Question 184615: 2x-5=7 Click here to see answer by Alan3354(30993)   Question 184857: Avis Proctor works at a gourmet delicatessen. She is preparing a cheese tray for a large reception. She is using some cheeses that sell for $8 per lb and others that sell for $12 per lb. How many pounds of cheese at each price should she use in the oreder for the mixed cheeses on the tray to wigh of 56 lb and sell for $10.50 per lb? Click here to see answer by solver91311(16885)   Question 184857: Avis Proctor works at a gourmet delicatessen. She is preparing a cheese tray for a large reception. She is using some cheeses that sell for $8 per lb and others that sell for $12 per lb. How many pounds of cheese at each price should she use in the oreder for the mixed cheeses on the tray to wigh of 56 lb and sell for $10.50 per lb? Click here to see answer by stanbon(57347)   Question 184832: how do you do the substitution method Click here to see answer by alaccalac(13)   Question 184878: A small plane travels 200 mph with the wind and 120 mph against it. Find the speed of the wind and the speed of the plane in still air. Click here to see answer by solver91311(16885)   Question 184938: #3 Graph. I am so confused. I can get the problem, but I can't draw up the graph... P (0 , 3) is the intersection where the lines cross. 1st line: - X intercept: P(3, 0) - Y intercept: P(0,3) 2nd line: - X intercept: P(-3,0) - Y intercept: P(0,3) what does this look like in a graph? Thanks. Click here to see answer by stanbon(57347)   Question 184946: A small plane travels 200mph with the wind and 120 mph against it. Find the speed of the wind and the speed of the plane in still air? Click here to see answer by checkley77(12569)   Question 184977: Translate the following into a system of equations, then solve it. A customer walks into an electronics store and buys four MP3 players and six sets of headphones, paying $740. A second customer buys five MP3 players and four sets of headphones, and pays $785. How much does an MP3 player cost? How much does a set of headphones cost? Click here to see answer by SandyBeach(2)   Question 184977: Translate the following into a system of equations, then solve it. A customer walks into an electronics store and buys four MP3 players and six sets of headphones, paying $740. A second customer buys five MP3 players and four sets of headphones, and pays $785. How much does an MP3 player cost? How much does a set of headphones cost? Click here to see answer by checkley77(12569)   Question 185048: determine whether each equation is a linear equation. Explain. If an equation is linear, identify A,B, and C. y=-1 3x=5y+7 Click here to see answer by Alan3354(30993)

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