In the following exercises, translate to a system of equations and solve. 407. Translate to a system of inequalities and solve. Andi wants to spend no more than $50 on Halloween treats. She wants to buy candy bars that cost $1 each and lollipops that cost $0.50 each, and she wants the number of lollipops to be at least three times the number of candy bars. (a) Write a system of inequalities to model this situation. (b) Graph the system. (c) Can she buy 20 candy bars and 70 lollipops? (d) Can she buy 15 candy bars and 65 lollipops?
In the following exercises, translate to a system of equations and solve. 407. Translate to a system of inequalities and solve. Andi wants to spend no more than $50 on Halloween treats. She wants to buy candy bars that cost $1 each and lollipops that cost $0.50 each, and she wants the number of lollipops to be at least three times the number of candy bars. (a) Write a system of inequalities to model this situation. (b) Graph the system. (c) Can she buy 20 candy bars and 70 lollipops? (d) Can she buy 15 candy bars and 65 lollipops?
In the following exercises, translate to a system of equations and solve.
407. Translate to a system of inequalities and solve. Andi wants to spend no more than $50 on Halloween treats. She wants to buy candy bars that cost $1 each and lollipops that cost $0.50 each, and she wants the number of lollipops to be at least three times the number of candy bars.
(a) Write a system of inequalities to model this situation.
Solve the system of equation for y using Cramer's rule. Hint: The
determinant of the coefficient matrix is -23.
-
5x + y − z = −7
2x-y-2z = 6
3x+2z-7
eric
pez
Xte
in
z=
Therefore, we have
(x, y, z)=(3.0000,
83.6.1 Exercise
Gauss-Seidel iteration with
Start with (x, y, z) = (0, 0, 0). Use the convergent Jacobi i
Tol=10 to solve the following systems:
1.
5x-y+z = 10
2x-8y-z=11
-x+y+4z=3
iteration (x
Assi 2
Assi 3.
4.
x-5y-z=-8
4x-y- z=13
2x - y-6z=-2
4x y + z = 7
4x-8y + z = -21
-2x+ y +5z = 15
4x + y - z=13
2x - y-6z=-2
x-5y- z=-8
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2025.01.31 22:35
f
Use Pascal's triangle to expand the binomial
(6m+2)^2
College Algebra with Modeling & Visualization (5th Edition)
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