A rock drill can be operated at three different operating speeds, each with a unique drilling rate (i. e., rate of production). The faster the drill operates, the sooner the bit wears out and must be replaced. Replacement bits cost $10.00 each and cannot be re-sharpened. The drill operator costs $30.00 per hour. A. Assuming one drilling cycle requires 96 linear feet of drilling, which speed results in the lowest drilling cost per foot?
Speed Drilling Rate Bit Life at this Speed Speed (min)
A 3 9
B 4 8
C 6 7
B. Assume that it takes an average of 30 minutes to load and blast the holes drilled in one drilling cycle. If it takes longthan 30 minutes to complete a drilling cycle, then the blasters must wait on the drill at a cost of $60.00 per hour. Using the data from Part (a) and considering the possible penalty for making the blasters wait, which speed results in the lowest drilling cost per foot AND how much is this cost per foot?
The drilling cost per foot for speed A is SL

1   all nations face the problem of scarcity because there are limited resources and unlimited wants. nations do not have enough factors of production to produce everything that their population wants. entrepreneurial resources initiate businesses to make new goods and services; labor resources produce goods and services.

2 there are four factors of production: natural resources, labor resources, capital resources, and entrepreneurial resources. natural resources are raw materials from nature that are used to produce goods. trees, water, and grains are natural resources. some natural resources, such as wheat and cattle, are renewable

3 wants

things that you do not need to have in order to survive, but would like to have

needs

things that you must have in order to survive

goods

physical products

services

tasks that a business perform for customers

resources

items that people can use to make or obtain what they need or want

determine

to settle or decide by choice of alternatives or possiblities

4 i really dont know

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answerblank(1) negatively.blank(2); rises; blank(3) falls;

answer trochanter; i believe this is correct, plz check first, good luck;