A law office orders business stationery. The cost is $21 .95 per box. (See Example 10) a. Write a function that represents the cost C x in $ for x boxes of stationery. b. There is a 6 % sales tax on the cost of merchandise and $10 .99 for shipping. Write a function that represents the total cost T a for a dollars spent in merchandise and shipping. c. Find T ○ C x . d. Find T ○ C 4 and interpret its meaning in the context of this problem.
A law office orders business stationery. The cost is $21 .95 per box. (See Example 10) a. Write a function that represents the cost C x in $ for x boxes of stationery. b. There is a 6 % sales tax on the cost of merchandise and $10 .99 for shipping. Write a function that represents the total cost T a for a dollars spent in merchandise and shipping. c. Find T ○ C x . d. Find T ○ C 4 and interpret its meaning in the context of this problem.
A law office orders business stationery. The cost is
$21
.95
per box. (See Example 10)
a. Write a function that represents the cost
C
x
in $
for
x
boxes of stationery.
b. There is a
6
%
sales tax on the cost of merchandise and
$10
.99
for shipping. Write a function that represents the total cost
T
a
for
a
dollars spent in merchandise and shipping.
c. Find
T
○
C
x
.
d. Find
T
○
C
4
and interpret its meaning in the context of this problem.
The system needs to write a cheque for the order placed by a particular table. The
table given below depicts the relationship between the prices of the items ordered and
the final prices after applicable taxes. Complete the function such that it satisfies this
relationship. Using this function, complete the table. Write your answer in the boxes
given below.
2
Prices of items on
Prices after tax
menu (x)
added (y)
$10
$12
$23
$17.5
$20
$15
y =
$19
$27
Hours. Suppose AT&T charges $6.01 for a 7-minute call to Sweden and $6.79 for an 8-minute
Can to Sweden. Suppose that MCI charges $0.66 a minute plus a $1.99 overseas connection fee.
a. Write a function that represents how much AT&T charges. Define your variables.
b. Write a function that represents how much MCI charges. Use the same variable definitions as
no.
you did in part (a).
c. Use an algebraic method (solve the two equations from parts (a) and (b) using substitution) to
determine the length of a phone call that results in the same charge for both companies
83
22. INVENTORY Malik owns a bakery. Every
week he orders chocolate chips from a
supplier. The supplier's pricing is shown
in the table.
Chocolate Chip Pricing
$4 per pound
Up to 3 pounds
$1.50 per pound
For each pound over 3 pounds
a. Write a function to represent the cost of chocolate chips.
b. Malik's budget for chocolate chips for the week is $25. How many whole
pounds of chocolate chips can he order?
University Calculus: Early Transcendentals (3rd Edition)
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