Perth mining company operates two mines for the purpose of extracting gold and silver. the saddle mine costs $12,000/day to operate, and it yields 50 oz of gold and 3000 oz of silver each of x day. the horseshoe mine costs $19,000/day to operate, and it yields 75 oz of gold and 1000 oz of silver each of y day. company management has set a target of at least 650 oz of gold and 18,000 oz of silver. how many days should each mine be operated so that the target can be met at a minimum cost?

Omnidata uses the annualized income method to determine its quarterly federal income tax payments. it had $100,000, $50,000, and $90,000 of taxable income for the first, second, and third quarters, respectively ($240,000 in total through the first three quarters). what is omnidata's annual estimated taxable income for purposes of calculating the third quarter estimated payment?

On april 1, santa fe, inc. paid griffith publishing company $2,448 for 36-month subscriptions to several different magazines. santa fe debited the prepayment to a prepaid subscriptions account, and the subscriptions started immediately. what amount should appear in the prepaid subscription account for santa fe, inc. after adjustments on december 31 of the first year assuming the company is using a calendar-year reporting period and no previous adjustment has been made?

Which of the statements best describes why the aggregate demand curve is downward sloping? an increase in the aggregate price level causes consumer and investment spending to fall, because consumer purchasing power decreases and money demand increases. as the aggregate price level increases, consumer expectations about the future change. as the aggregate price level decreases, the stock of existing physical capital increases. as a good's price increases, holding all else constant, the good's quantity demanded decreases.