Delivery charges. United Express, a national package delivery service, charges a base price for overnight delivery of packages weighing I pound or less and a surcharge for each additional pound (or fraction thereof). A customer is billed $27 .75 for shipping a 5-pound package and $64 .50 for a 20-pound package. Find the base price and the surcharge for each additional pound.
Delivery charges. United Express, a national package delivery service, charges a base price for overnight delivery of packages weighing I pound or less and a surcharge for each additional pound (or fraction thereof). A customer is billed $27 .75 for shipping a 5-pound package and $64 .50 for a 20-pound package. Find the base price and the surcharge for each additional pound.
Solution Summary: The author calculates the base price and the surcharge for United Express shipping service.
Delivery charges.United Express, a national package delivery service, charges a base price for overnight delivery of packages weighing I pound or less and a surcharge for each additional pound (or fraction thereof). A customer is billed
$27
.75
for shipping a 5-pound package and
$64
.50
for a 20-pound package. Find the base price and the surcharge for each additional pound.
1.
2.
Show that the following are not logically equivalent by finding a counterexample:
(p^q) →r and
(db) V (d←d)
Show that the following is not a contradiction by finding a counterexample:
(pV-q) AqA (pv¬q Vr)
3.
Here is a purported proof that (pq) ^ (q → p) = F:
(db) v (bd) = (db) v (bd)
=(qVp) A (g→p)
= (¬¬q V ¬p) ^ (q→ p)
(db) V (db) =
=¬(a→p)^(a→p)
= (gp) ^¬(a → p)
=F
(a) Show that (pq) ^ (q→p) and F are not logically equivalent by finding a counterex-
ample.
(b) Identify the error(s) in this proof and justify why they are errors. Justify the other steps
with their corresponding laws of propositional logic.
Question 2: When John started his first job, his first end-of-year salary was $82,500. In the following years, he received salary raises as shown in the following table.
Fill the Table: Fill the following table showing his end-of-year salary for each year. I have already provided the end-of-year salaries for the first three years. Calculate the end-of-year salaries for the remaining years using Excel. (If you Excel answer for the top 3 cells is not the same as the one in the following table, your formula / approach is incorrect) (2 points)
Geometric Mean of Salary Raises: Calculate the geometric mean of the salary raises using the percentage figures provided in the second column named “% Raise”. (The geometric mean for this calculation should be nearly identical to the arithmetic mean. If your answer deviates significantly from the mean, it's likely incorrect. 2 points)
Hint for the first part of question 2: To assist you with filling out the table in the first part of the question,…
Chapter 4 Solutions
Finite Mathematics for Business, Economics, Life Sciences, and Social Sciences (14th Edition)
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