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Chapter 3: Problem 30

Write a pseudocode algorithm for a program that calculates the total of a retail sale. The program should ask for the amount of the sale and the sales tax rate. The sales tax rate should be entered as a floating-point number. For example, if the sales tax rate is 6 percent, the user should enter \(0.06 .\) The program should display the amount of sales tax and the total of the sale. After you write the pseudocode algorithm, convert it to a complete \(\mathrm{C}_{++}\) program.

Short Answer

Expert verified
Question: Write the steps to create a pseudocode algorithm for calculating the total of a retail sale, considering the given sales tax rate. Answer: The steps to create a pseudocode algorithm for calculating the total of a retail sale, considering the given sales tax rate, are as follows: 1. Read the amount of the sale. 2. Read the sales tax rate. 3. Calculate the sales tax by multiplying the sale amount by the sales tax rate. 4. Calculate the total of the sale by adding the sales tax to the sale amount. 5. Display the amount of sales tax. 6. Display the total of the sale.

Step by step solution

01

Read the amount of the sale.

Input the sale amount as a floating-point number.
02

Read the sales tax rate.

Input the sales tax rate as a floating-point number.
03

Calculate the sales tax.

Multiply the sale amount by the sales tax rate to get the sales tax.
04

Calculate the total of the sale.

Add the sales tax to the sale amount to get the total of the sale.
05

Display the amount of sales tax.

Output the sales tax calculated in Step 3.
06

Display the total of the sale.

Output the total of the sale calculated in Step 4. **C++ Program:** ```cpp #include using namespace std; int main() { float sale_amount, tax_rate, sales_tax, total_sale; // Step 1: Read the amount of the sale. cout << "Enter the sale amount: "; cin >> sale_amount; // Step 2: Read the sales tax rate. cout << "Enter the sales tax rate: "; cin >> tax_rate; // Step 3: Calculate the sales tax. sales_tax = sale_amount * tax_rate; // Step 4: Calculate the total of the sale. total_sale = sale_amount + sales_tax; // Step 5: Display the amount of sales tax. cout << "Sales tax: $" << sales_tax << endl; // Step 6: Display the total of the sale. cout << "Total Sale: $" << total_sale << endl; return 0; } ```

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