Answer:
30m
Step-by-step explanation:
Here is the complete question
A tree is standing behind a building. 2/5th of the height of the tree can be seen and the rest is hidden by the building. The building is 12 metres high. What is the height of the tree?
If 2/5 of the tree can be seen the tree covers ( 1 - 2/5) 3/5 of the tree. If the building is 12 metres high, it means that 2/5 of the building is 12m high
the height of the tree = 12 x (5/2) = 30m
Answer:4.7
Step-by-step explanation:
Answer:
$5.25
Step-by-step explanation:
a half dozen is 6
31.50 ÷ 6 = 5.25 per egg.
those are some expensive eggs!!
Given
The demand equation is given
here Q is liters purchased per year, P is the price in dollars per unit and k is a parameter =0.75.
Explanation
a. To determine the quantity of petrol demanded by the average motorist if the price is 1 dollar per liter.
b. To determine the change in quantity demanded.
It is given that the price of petrol increases from $1.0to $2.0 per litre on a sustained basis.
Then the equation becomes
The change in quantity demanded is
Substitute the values.
Answer
a.The quantity of petrol demanded by the average motorist if the price is 1 dollar per liter is 2000 litres per year.
b. The change in quantity demanded is the fall in demand due to negative sign which is 0.4054.