Textbook Question
Solve each problem. Find the radius and height (to the nearest thousandth) of an open-ended cylinder with volume 50 in.3 and lateral surface area 65 in.2.
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7. Systems of Equations & Matrices
Two Variable Systems of Linear Equations
Back7. Systems of Equations & Matrices
Two Variable Systems of Linear Equations
- Textbook Question
Solve each problem. The supply and demand equations for a certain commodity are given. supply: p = 2000/(2000 - q) and demand: p = (7000 - 3q)/2q.
Find the equilibrium demand.
449views - Textbook Question
Solve each problem. The supply and demand equations for a certain commodity are given. supply: p = 2000/(2000 - q) and demand: p = (7000 - 3q)/2q.
Find the equilibrium price (in dollars).
416views - Textbook Question
Solve each problem. The supply and demand equations for a certain commodity are given. supply: p = √(0.1q + 9) - 2 and demand: p = √(25 - 0.1q).
Find the equilibrium demand.
388views - Textbook Question
Solve each problem. The supply and demand equations for a certain commodity are given. supply: p = √(0.1q + 9) - 2 and demand: p = √(25 - 0.1q).
Find the equilibrium price (in dollars).
407views - Textbook QuestionSolve each problem. Find all values of b such that the straight line 3x - y = b touches the circle x^2 + y^2 = 25 at only one point.373views
- Textbook QuestionSolve each problem. Find the equation of the line passing through the points of intersection of the graphs of x^2 + y^2 = 20 and x^2 - y = 0.416views
- Textbook QuestionIn Exercises 47–52, solve each system by the method of your choice. 2x^2+xy=6, x^2+2xy=0373views
- Textbook Question
Solve each problem. See Examples 5 and 9. At the Berger ranch, 6 goats and 5 sheep sell for \$305, while 2 goats and 9 sheep sell for \$285. Find the cost of a single goat and of a single sheep.
27views - Textbook QuestionSolve each system. (Hint: In Exercises 69–72, let 1/x = t and 1/y = u.)2/x + 1/y = 3/23/x - 1/y = 127views
- Textbook QuestionSolve each system by elimination. In systems with fractions, first clear denominators. See Example 2.2x - 3y = -7 5x + 4y = 1739views
- Textbook QuestionSolve each system by substitution. See Example 1.8x - 10y = -22 3x + y = 641views
- Textbook QuestionUse the substitution or elimination method to solve each system of equations. Identify any inconsistent systems or systems with infinitely many solutions. If a system has infinitely many solutions, write the solution set with y arbitrary. 6x + 10y = -11 9x + 6y = -349views