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The unit cost of the fencing and the cost of a bag of mulch together with
the area and perimeter of the garden give a cost sum of $36.5.
Response:
- The amount required to spend is <u>$36.5</u>
Cost of the barrier per feet (unit cost) = $0.75
Area covered by one bag of mulch = 7 square feet
Cost of one bag of mulch (unit cost) = $5
From the given diagram, we have;
Area of the garden = 8 ft. × 2 ft. + 0.5 × 8 ft. × 3 ft. = 28 ft.²
Length of fencing = 2 ft. + 8 ft. + 2 ft. + 5 ft. 5 ft. = 22 ft.
- Amount to spend = 4 bags × $5 + 22 ft. × $0.75 =<u> $36.5</u>
Learn more about unit cost here:
Answer:
The population of the city in 2020 is 3,839,832
Step-by-step explanation:
Given:
Population at 2000 = 315,000
Rate at which the population increases = 2%
To Find:
The Population in the city after 2020 = ?
Solution:
The population in the city after 2020 can be found by using Exponential growth function.
Exponential growth occurs when a quantity increases by the same factor
Exponential growth function is
Where
y is the final amount
a is the initial amount
r is the rate of increase
t is the time period.
Now substituting the values ,
In 2020 i.e., after 10 years
y = 3,839,832.42