#
PT 1420 Assignment 3
**Topics:**
Real number,
Integer,
Computer programming,
Natural number,
Mathematics /
**Pages:** 3 (676 words) /
**Published:** Oct 28th, 2014

**Topics:**Real number, Integer, Computer programming, Natural number, Mathematics /

**Pages:**3 (676 words) /

**Published:**Oct 28th, 2014

5. What two things must you normally specify in a variable declaration?

You must specify the variable type and an identifier. int n; // type - int, identifier - n 6. What value is stored in uninitialized variables? is a variable that is declared but is not set to a definite known value before it is used.

Algorithm workbench

3. Write assignment statements that perform the following operations with the variables a, b, and c.

a. Adds 2 to a and stores the result in b

b. Multiplies b times 4 and stores the result in a

c. Divides a by 3.14 and stores the result in b

d. Subtracts 8 from b and stores the result in a

Assignment statements that perform operations with the variables a, b, and c* (*Actually none of these operations involves the variable c at all... is this an error, or a 'trick answer'?): b = a + 2 a = b * 4 b = a / 3.14 a = b – 8

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. Set result = x + y

b. Set result = z * 2

c. Set result = y / x

d. Set result = y – z result = x++ - y;

Answer -4 result = 4 – 8 = -4 result = ++w + y;

Answer

w = w + 1 = 5 + 1 = 6 result = 6 + 8 = 14

5. Write a pseudocode statement that declares the variable cost so it can hold real numbers.

Declare Real price= 0.00

Display "the original price."

Input item original price

Display "price"

6. Write a pseudocode statement that declares the variable total so it can hold integers. Initialize the variable with the value 0.

Declare Real price= 0.00

Display "the original price."

Input item original price

Display "price"

7. Write a pseudocode statement that assigns the value 27 to the variable count. count := 27

8. Write a pseudocode statement that assigns the sum of 10 and 14 to the variable total.

/*Declare variables

Total (number (3)) = 0

A (number (2)) =10

B (number (2)) =14

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