A bookstore marks up the price of a book by 40% of the cost from the publisher. Therefore, the bookstore’s price to the student, P ( x ) ( in $ ) after a 7.5% sales tax, is given by P ( x ) = 1.075 ( x + 0.40 x ) , where x is the cost of the book from the publisher. Evaluate P ( 60 ) and interpret the meaning in the context of this problem.
A bookstore marks up the price of a book by 40% of the cost from the publisher. Therefore, the bookstore’s price to the student, P ( x ) ( in $ ) after a 7.5% sales tax, is given by P ( x ) = 1.075 ( x + 0.40 x ) , where x is the cost of the book from the publisher. Evaluate P ( 60 ) and interpret the meaning in the context of this problem.
Solution Summary: The author calculates the value of P(60) and interprets it. If the bookstore's price to the student is 60, then the total price of the book including sales tax
A bookstore marks up the price of a book by 40% of the cost from the publisher. Therefore, the bookstore’s price to the student,
P
(
x
)
(
in $
)
after a 7.5% sales tax, is given by
P
(
x
)
=
1.075
(
x
+
0.40
x
)
, where x is the cost of the book from the publisher. Evaluate
P
(
60
)
and interpret the meaning in the context of this problem.
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
realme Shot on realme C30
2025.01.31 22:35
f
Use Pascal's triangle to expand the binomial
(6m+2)^2
Chapter 2 Solutions
Aleks 360 Access Card (18 Weeks) for College Algebra
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