Answer:
Suppose the cost per hour incurred in operating a cruise ship is 3a + b
dollars per hour, where a and b are positive constants and v is the ship's speed in miles per hour. At what speed (in miles per hour) should the ship be operated between two ports, at a distance D miles apart, to minimize the cost? (Hint: Minimize the cost, not the cost per hour.)
<em>The speed at which the ship would maximize cost is </em>![\sqrt[3]{\frac{3a}{2b} }](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B%5Cfrac%7B3a%7D%7B2b%7D%20%7D)
Explanation:
The problem can be solved using differentiation to get the minimum value of the speed to travel between the two ports. Step by step calculation is contained in the attached images;
Answer:
Real GDP will decrease by $50 billion.
Explanation:
In order to calculate the net effect of a reduction in consumption of $10 billion, we need to identify the multiplier first.
Multiplier = 1 / marginal propensity to save
Marginal propensity = 1 - marginal propensity to consume = 1-0.8 = 0.2
Multiplier = 1 /0.2 = 5
The net change then of a reduction by 10 billion = 10 * 5 = $50 billion
Hope that helps.
In an open economy, national saving equals to domestic investment and net capital outflow
Explanation:
In an open economy national saving as considered or calculated an equal to the domestic investment and net capital outflow.
The savings saved by the households are generally deposited in the the banks accounts and banks use this amount to give loans to the business organisation and they make money from these loans.
Apart from this, countries also invests in the other foreign countries which is also considered as domestic (national) saving.
Answer:
Correct option is 6.59
Explanation:
Selling price of stock at the end of the year is $6.99. Annual return rate is 6%. Price of stock at the beginning will be present value of stock valued at the end discounted at 6%. Computation is as shown below:



= $6.59
Therefore, Stock's price in the beginning of the year is $6.59.
Answer:
I don't know but good luck finding the answer
Explanation: