Answer:
The benefit cost ratio is 1.564
Explanation:
The benefit-cost ratio is the ratio of the present value of benefits to the present value of costs. It is thus calculated as follows.
Benefit-cost ratio = Present value of benefits / Present value of costs
Present value of costs = $20,000 + $2,500 (P/A, 10%, 10 years)
= $20,000 + $15,361
= $35,361
Present value of benefits = $9,000 (P/A, 10%, 10 years)
= $9,000 x 6.145
= $55,305
Benefit-cost ratio = $55,305 / $35,361
= 1.564
Answer:
It will lead to an increase in consumption of good X only if X is a normal good ( D )
Explanation:
If consumer has rational, monotonic and convex preference the decrease in price of good X will lead to an increase in consumption of good X only if X is a Normal good .
This is because the demand for Normal goods increases with increase in consumers income. therefore <em>a decrease in price will automatically lead to an increase in demand because of the increase in the purchasing power of the consumer's income.</em>
There were 72 (108 - 36) more maple trees in the woodlot before the bug problem. There were 108 maple trees in the woodlot before the bug problem. There are 36 maple trees in the woodlot after the bug problem.
The following information is given in the question:
Ratio of maple trees to oak trees before bug problem = 9:5
Ratio of maple trees to oak trees after replanting = 3:11
Total number of oak trees after replanting =132
Total number of trees in the woodlot is the same before and after the bug problem.
Let the number of maple trees after replanting be 'x'
From the data above, we can find the number of maple trees after replanting as follows:


So, number of maple trees after replanting in the woodlot are 36.


Let number of maple trees before bug problem be 'z'.
We can find the number of maple trees before bug problem as follows:



Physical factors shape the environment and determine climate rainfall and vegetation. Chemical factors determine acidity levels of soils, radioactivity and natural chemicals found below the soil. They are also important for the nutrition of other animals. Biological factors include all of the plants and animals and they help change the environment daily.