In Exercises 15–24, solve the systems of equations by elimination, if a solution exists.
15.
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
COLLEGE ALGEBRA IN CONTEXT W/ INT. REVIE
- In Exercises 47-48, solve each system by the method of your choice. y + 4 x - y x + 2 x + y 1 2 3 3 47. X - y 48. x + 2 x + y 5 y + 4 5 2 3 2. 2.arrow_forward24. Solve the system of equations.* y=-2x² 3x2 +y = 52 *More than one answer may be correct; check all that apply. O (4, – 8) 13 (2i, - 8) 13 ン V13 2. 13) O -21, 4) O (-2i, - 8) (-V13, – 8) □ (學,-号 ) V13 (2i, )arrow_forward8. Identify the number of solutions from the description of the equations. Two equations are the same on one side but different on the other. • One of the equations in the system can be rewritten so it is identical to the other equation.arrow_forward
- In Exercises 1-14 find a particular solution. %3D-6хе -* у" — 4y' — 5у 7.arrow_forward5. (06.03) 5.(06.03) How can X-3 X+8 be set up as a system of equations? 4. 2. Bi U Font Family - AA- A =arrow_forwardWhat is the solution to the system of equations shown? トy O (-1,-3) O (1,3) O (-3,-1) O (3,1)arrow_forward
- What are the solution(s) to the system? (2r+5y = 14 2r+2y 5 () A (. -) B There are no solutions. ed Document6 -, Linear Progra. Linear Progra.. A*.arrow_forwardAn important application of systems of equations arises in connection with supply and demand. As the price of a product increases, the demand for that product decreases. However, at higher prices, suppliers are willing to produce greater quantities of the product. Exercises 97–98 involve supply and demand. 97. A chain of electronics stores sells hand-held color televisions. The weekly demand and supply models are given as follows: Number sold Demand model per week N = -5p + 750 Price of television Number supplied to the chain per week N = 2.5p. 1apow hjddns a. How many hand-held color televisions can be sold and supplied at $120 per television? b. Find the price at which supply and demand are equal. At this price, how many televisions can be supplied and sold each week?arrow_forwardQuestion * : Solve the system of equations below. y =x +9 X = 7 A. no solution B. infinitely many solutions C. x= 2, y = 7 D. x=7, y = 2 acerarrow_forward
- Exercises 59–66: Use the intersection-of-graphs method to solve the equation. Then solve symbolically. 63. -х + 4 %3D 3хarrow_forwardSolve the systems in Exercises 11-14 11. X₂ + 4x3 = -5 x₁ + 3x₂ + 5x3 = -2 3x₁ + 7x₂ + 7x3 = 6arrow_forward10 pol Question * What is the ordered pair that is the solution to the system of equations? y 4 2 4 4 2 4 A. (0,5) В. (0, 2) С. (2,4) D. (2,0)arrow_forward
- Algebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal LittellBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin HarcourtElementary AlgebraAlgebraISBN:9780998625713Author:Lynn Marecek, MaryAnne Anthony-SmithPublisher:OpenStax - Rice University