51. A post office worker earns a fixed monthly salary of \$1,500. Additionally, she conducts online classes for 4 weeks in a month, charging \$50 per week. After deducting 10% as taxes from her total monthly income, what is her net income?
Key Concept: Salary, Weekly Earnings, Total Income
b) \$1,530
[Solution Description]
First, calculate the monthly earnings from online classes:
Number of weeks = 4, fee per week = \$50.
So, class income for the month = 4 * \$50 = \$200.
Next, add the fixed salary to the class income:
Total gross income = \$1,500 + \$200 = \$1,700.
Now, subtract 10% tax from the total income:
10% of \$1,700 = 0.1 * \$1,700 = \$170.
Net income = Gross income - tax = \$1,700 - \$170 = \$1,530.
Your Answer is correct.
b) \$1,530
[Solution Description]
First, calculate the monthly earnings from online classes:
Number of weeks = 4, fee per week = \$50.
So, class income for the month = 4 * \$50 = \$200.
Next, add the fixed salary to the class income:
Total gross income = \$1,500 + \$200 = \$1,700.
Now, subtract 10% tax from the total income:
10% of \$1,700 = 0.1 * \$1,700 = \$170.
Net income = Gross income - tax = \$1,700 - \$170 = \$1,530.