Opal Production Company uses a standard costing system. The following information pertains to the current year: Actual factory overhead costs ($15,000 is fixed) $50,000 Actual direct labor costs (10,000 hours) $130,000 Standard direct labor for 6,000 units: Standard hours allowed 9,500 hours Labor rate $10.00 The factory overhead rate is based on an activity level of 12,000 hours. Standard cost data on an activity level of 12,000 hours is as follows: Variable factory overhead $18,000 Fixed factory overhead 12,000 Total factory overhead $30,000 What is the variable overhead efficiency variance for Opal Production Company?

You are the manager of a large crude-oil refinery. as part of the refining process, a certain heat exchanger (operated at high temperatures and with abrasive material flowing through it) must be replaced every year. the replacement and downtime cost in the first year is $165 comma 000. this cost is expected to increase due to inflation at a rate of 7% per year for six years (i.e. until the eoy 7), at which time this particular heat exchanger will no longer be needed. if the company's cost of capital is 15% per year, how much could you afford to spend for a higher quality heat exchanger so that these annual replacement and downtime costs could be eliminated?

Ahospital purchases a $500,000 magnetic resonance imaging (mri) machine that has a useful life of 9 years. the salvage value at the end of 9 years is $77,000. (a) write a linear equation that describes the value y (in dollars) of the mri machine in terms of the time t (in years), 0 ≤ t ≤ 9. (b) find the value, in dollars, of the machine after 6 years. $ (c) find the time, in years, when the value of the equipment will be $140,000. (round your answer to two decimal places.) yr

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