Answer:
a) 2.1 billion tons/yr
b) 10.5 billion people
Explanation:
Given:
Total arable land = 1.4 billion
Grain produced by each hectare of land = 1 and 2 tons annually
therefore,
The average Grain produced by each hectare of land =
= 1.5 tons/yr
Therefore,
The total grain produced annually
= average Grain produced × Total arable land
= 1.5 × 1.4 billion
= 2.1 billion tons/yr
b) Sufficient grain for each people = 200 kg
Now,
1 ton = 1000 kg
thus,
2.1 billion tons = 2.1 × 10⁹ × 1000 kg = 2.1 × 10¹² kg
The number of people Earth can support =
or
The number of people Earth can support =
or
The number of people Earth can support = 10.5 × 10⁹ people
= 10.5 billion people
Okay sure. consider it done!!!
For an economist, the cost of something is: cost is the measure of the alternative opportunities foregone in the choice of one good or activity over others.
In general terms, the monetary value of goods and services purchased by producers and consumers. In a basic economic sense, cost is a measure of alternatives that are abandoned when choosing one product or activity over another.
These basic costs are commonly referred to as opportunity costs. For example, for fixed-income consumers, the opportunity cost of buying a new home appliance can be worth the missed vacation trip.
Traditionally, the cost is related to the relationship between the value of production input and the production level. Total cost refers to the total expenditure required to achieve a certain level of output. Divide this total cost by production to get the average cost or unit cost.
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Based on the type of business they run, we can infer that the wall clocks are <u>outputs. </u>
Operations involve:
- Inputs - materials and labor used to produce goods and services
- Equipment - help the labor produce
- Outputs - these are the final products of the production process
The wall clocks are sold by Claudia and Giada and so can be referred to as the final product of their business. This means that the wall clocks are therefore outputs.
In conclusion, the wall clocks are output.
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