Change: Economic Lot Size As Expressions Of Pj Problems - Peter O. Sagay

Company X produces item Y. Setting up each production run for Y costs $2500. Insurance costs, based on average number of Y in warehouse, is $20 per item per year. Storage costs, based on the maximum number of Y in the warehouse, is $15 per item per year. Suppose that company X expects to sell 1600 items of Y at a fairly uniform rate throughout the year. Determine the number of production runs that will minimize the company's total expenses.

Change: Economic Order Quantity As Expressions Of Pj Problems - Peter O. Sagay

A store manager wants to establish an optimal inventory policy for an item. Sales are expected to be at a steady rate and should total Q items sold during the year. Each time an order is placed (order is assumed to be the same size), a cost of h dollars is incurred. Carrying cost for the year will be s dollars per item to be figured on the average number of items in storage during the year. Show that the total inventory cost is minimized when each order calls for √(2Qh/s) items.

Motion: Continuity As Expressions Of Pj Problems - Peter O. Sagay.

The phenomenon of continuity is ubiquitous. It is in essence, non-stop repetitions towards an end point. For example, ...

Motion: Sprints As Expressions Of Pj Problems - Iremisan Adegiga

Athlete In Motion

Athletes are very displined. I have loved field & track events since my secondary school years . The above photo which is an example of the beauty of track events is why. There are six expressions of pj problems in the photo. Motion and force are two of the six. Think about the other four.

Change: Elasticity Of Demands As Expressions Of Pj Problems - Peter O. Sagay

Country X is a major supplier of commodity Y. X wishes to improve its balance of trade position by lowering the price of Y. The demand function is: q = 1000/p2.
(a) What is the Elasticity of Demand, E(p)?
(b) Will country X succeed in raising its revenue?

Change: Compound Interests As Expressions Of Pj Problems - Peter O. Sagay

Corporation X issues a zero coupon bond costing $200 and paying interest compounded monthly. After 5 years, the bond is worth $500. Agree or disagree with some financial experts who consider this bond to be a junk bond.

Change: Estimations As Expressions Of Pj Problems - Peter O. Sagay

Least Squares Method

Early in elementary education, pupils are introduced to the concept of rounding numbers. For example, the number 57 rounded to the nearest tenth is 60. There are various reasons for approximating numbers: simplicity (e.g. 57 is simpler than 57.775) and elusiveness of the exact number (e.g. π = 3.1428...) are two common reasons. No matter the reason, the basic underlying concept of estimation is change: data points are replaced by other data points. Let us use the estimation method called the method of least squares to further explain estimation.

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