The differential equation below models the temperature of an 89°C cup of coffee in a 23°C room, where it is known that the coffee cools at a rate of 1°C per minute when its temperature is 73°C. Solve the differential equation to find an expression for the temperature of the coffee at time t. (Let y be the temperature of the cup of coffee in °C, and let t be the time in minutes, with t = 0 corresponding to the time when the temperature was 89°C.)

Following are the transactions for valdez services. the company paid $2,000 cash for payment on a 6-month-old account payable for office supplies. the company paid $1,200 cash for the just completed two-week salary of the receptionist. the company paid $39,000 cash for equipment purchased. the company paid $800 cash for this month’s utilities. the company paid $4,500 cash in dividends to the owner (sole shareholder). examine the above transactions and identify those that create expenses for valdez services. prepare general journal entries to record those transactions that created expenses in the above given order.

1tanner invested $135,000 cash along with office equipment valued at $32,400 in the company in exchange for common stock. 2 the company prepaid $7,200 cash for 12 months’ rent for office space. (hint: debit prepaid rent for $7,200.) 3 the company made credit purchases for $16,200 in office equipment and $3,240 in office supplies. payment is due within 10 days. 6 the company completed services for a client and immediately received $2,000 cash. 9 the company completed a $10,800 project for a client, who must pay within 30 days. 13 the company paid $19,440 cash to settle the account payable created on april 3. 19 the company paid $6,000 cash for the premium on a 12-month insurance policy. (hint: debit prepaid insurance for $6,000.) 22 the company received $8,640 cash as partial payment for the work completed on april 9. 25 the company completed work for another client for $2,640 on credit. 28 the company paid $6,200 cash in dividends. 29 the company purchased $1,080 of additional office supplies on credit. 30 the company paid $700 cash for this month’s utility bill. prepare general journal entries to record these transactions. 2. post the journal entries from part 1 to the ledger accounts.

Waterway company’s record of transactions for the month of april was as follows. purchases sales april 1 (balance on hand) 672 @ $6.00 april 3 560 @ $11.00 4 1,680 @ 6.08 9 1,568 @ 11.00 8 896 @ 6.41 11 672 @ 12.00 13 1,344 @ 6.51 23 1,344 @ 12.00 21 784 @ 6.61 27 1,008 @ 13.00 29 560 @ 6.79 5,152 5,936 (a) calculate average-cost per unit. (b) assuming that periodic inventory records are kept in units only, compute the inventory at april 30 using lifo and average-cost. (c) assuming that perpetual inventory records are kept in dollars, determine the inventory using (1) fifo and (2) lifo. (d) compute cost of goods sold assuming periodic inventory procedures and inventory priced at fifo.