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

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 Linear Solvers Practice Answers archive Word Problems Lessons In depth

 Question 284346: 1.Write one equation of a line that is perpendicular to x = -3 How would I find that out? where do I begin? I don't just want the answer. Click here to see answer by richwmiller(9144)

 Question 284343: y = 3x +7 and x + 2y = -10 a.Are the lines perpendicular? Explain why by comparing the slopes of the lines. I just want a guide on how to begin to solve, I dont want the answer. Click here to see answer by richwmiller(9144)

 Question 284345: y = 3x + 7 and x + 2y = -10 a.Do the lines intersect? Explain why. If the lines do intersect, find the point of intersection. I dont want the answer only a guide on how to begin to solve the answer. Click here to see answer by richwmiller(9144)

 Question 284370: How do i do this: Freshy's pizza shop is having trouble attracting new customers, so Freshy's owner wants to have a week long pizza special. Currently Freshy's makes a profit of \$1000 per week. The special promotion will selll pizza's for \$5 each, it will require paying for an additional employee must be paid \$480 for the week, promotional advertising will cost \$700, and it cost \$3.50 to make each promotional pizza. How many pizzas must freshy's sell in order to make a profit at the end of the promotion? Click here to see answer by richwmiller(9144)

 Question 284424: x+y=7 and 2x+3y=19 can you solve this problem and what should I study to understand this problem. Click here to see answer by Alan3354(31519)
 Question 284424: x+y=7 and 2x+3y=19 can you solve this problem and what should I study to understand this problem. Click here to see answer by Edwin McCravy(8999)

 Question 284478: I need help with this particular problem 1/2x+y=4 x=0 Click here to see answer by nyc_function(2733)

 Question 284682: How to solve a system with no solution and graph EQ1 3x - 5y = -9 EQ2 5x - 6y = -8 Click here to see answer by richwmiller(9144)

 Question 284834: suppose tom owns 2,000 shares of company X and 10,000 shares of company Y. The total value of tom's holdings of these two companies is \$372,000. Suppose tim owns 8,000 shares of company X and 6,000 of company Y. total value holdings is \$400,000 write an equation for tom and tim's holdings. use variables X and Y to represent the value of shares of company X and company Y then need to show the value of share of company X and Y Click here to see answer by Theo(3504)

 Question 285046: I need make two equations for this problem. if there were 4 people out at a restaurant and their meal cost \$30 per plate what is the two equations using X and y x is for the people Click here to see answer by richwmiller(9144)

 Question 285381: determine if the system has no solutions, one solutions, or many solutions. 2x+y=-8 -8x-4y=32 victoria_is_hawt@yahoo.com Click here to see answer by user_dude2008(1861)

 Question 285463: 3x + y = 12 y = 2x + 1 is this a linear equation? Click here to see answer by edjones(7569)

 Question 285544: Write a Systems of Equations for the sentence below: "A rectangular parking lot has a perimeter of 310 meters. The length is 5 meters more than 4 times the width. What is the length and width?" Thank you in advance. Click here to see answer by checkley77(12569)

 Question 285599: How would i put this into two equations. 1 gallon of milk cost \$3 and a family of 4 buys 12 galoons a month. How much is being spent on milk for a month. X= gallons of milk Y= amount spent per month Click here to see answer by josmiceli(9817)

 Question 285597: I need help to put this into two equations. A family of 4 goes out to eat twice a month and each persons meal cost \$30 How would i put that using X as number of people Y= total amount spent Click here to see answer by Theo(3504)
 Question 285597: I need help to put this into two equations. A family of 4 goes out to eat twice a month and each persons meal cost \$30 How would i put that using X as number of people Y= total amount spent Click here to see answer by josmiceli(9817)

 Question 286087: When the first equation is: y=5x-8 and the second equation is 5y=2x+6 how do you plug 5y=2x+6 into the first equation to solve? thank you, Wanda Mathis Click here to see answer by richwmiller(9144)

 Question 286132: I do not know how to solve system equations using substitions with fractions. Do i multiply by a common denominator? here is an example if you could solve it step by step for me: 7x-y=10 x=1/3y-2 i know the answer (4,18) but not how to get there. if you can help it would be greatly appreciated thank you. Click here to see answer by ptaylor(2052)

 Question 286399: i need to find a linear function whose graph has a slope of -8 and y intercept (0,4) Click here to see answer by checkley77(12569)

 Question 286416: Solving in terms of one variable: Solve each equation for x in terms of y x-3y=-1 Click here to see answer by richwmiller(9144)

 Question 286847: Solve each system by the addition method. Determine whether the equations are independent, dependent, or inconsistent 4x +3y = 2 -12x – 9y = -6 Click here to see answer by richwmiller(9144)

 Question 287249: a + b + c = 180 b = 3a c = 5a a=? Click here to see answer by sharon1948(6)

 Question 287581: Solve each system of equations by graphing. Remember the form of the solution. x+y=4 2x+y=5 Click here to see answer by richwmiller(9144)

 Question 287580: Find the solution of the inequality: -1 <= 4x-1/3 < 5 Click here to see answer by checkley77(12569)

 Question 287780: Where do these 2 lines intersect?? -2x-2y=4 and 10x-4y=40 Click here to see answer by richwmiller(9144)

 Question 287996: I have this quadratic equation and I can not figure it out; -0.2x squared + 12x + 11. I have to find the x and y coordinates. Help please. Click here to see answer by richwmiller(9144)

 Question 287946: If g(x) = √( x - 1), find all values of x for which g(x) = 6 I need help with this equation. Can someone explain the steps for solving it? Thank you. Carro Click here to see answer by richwmiller(9144)