You are working as an accountant for Apple Inc. and need to prepare the ledger accounts for the following transactions:

• On January 1st, Apple Inc. started its operations with an initial investment of $500,000 in cash.
• On January 5th, purchased office equipment worth $50,000 on credit.
• On January 10th, received $200,000 in cash from customers for services rendered.
• On January 15th, paid $30,000 in cash for office supplies.
• On January 20th, made a payment of $20,000 towards the equipment purchased on January 5th.
• On January 25th, received an invoice for utilities amounting to $10,000, to be paid next month.
• On January 31st, paid salaries worth $40,000 in cash.

Prepare the general ledger accounts for these transactions.