Unit 3 Assignment 1 Homework (Programming)

Short Answers pg71
5) What two things must you normally specify in a variable declaration?
You must specify type & name.
6) What value is stored in uninitialized variables?
An uninitialized variable is by default a 0.
Algorithm Workbench pg71-72
3) Write assignment statements that perform the following operations with the variable a, b and c.
a) Adds 2 to a and stores the result in b. { b = 2 + a }
b) Multiplies b by 4 and stores the result in a. { a = b * 4}
c) Divides a by 3.14 and stores the result in b. { b = a MOD 3.14 }
d) Subtracts 8 from b and stores the result in a { a = 8 – b }
4) Assume the variables result, w, x, y and z are all integers, and that w=5, x=4, y=8 and z=2. What value will be stored in result in each of the following statements?
a) 12 = x + y
b) 4 = z * 2
c) 2 = y / x
d) 6 = y – z
5) Write a pseudocode statement that declares the variable cost so it can hold a real numbers.
Dim cost1 As Double = 0
6) Write pseudocode statement that declares the variable total so it can hold integers. Initialize the variable with the value 0.
Dim cost1 As Integer = 0
7)Write a pseudocode statement that assigns the value 27 to the variable count.
Dim count As Integer = 27
8) Write a pseudocode statement that assigns the sum of 10 and 14 to the variable total.
Total = 10 + 14
9) Write a pseudocode statement that subtracts the variable downpayment from the variable total and assigns the result to the variable due. due = downpayment – total
10) Write a pseudocode statement that multiplies the variable subtotal by 0.15 and assigns the result to the variable totalfee.
First you must make the variables real numbers. example.Dim subtotal As Double = 0
The statement asked for in the question will appear as totalfee = subtotal * 0.15
Program Exercises pg 73
6) Design a program that will ask the user to enter the amount of a purchase,