The park behind James's house used to have a bike trail that was 12.347 kilometers long. Last year, the trail was reduced to 9.4
2 answers:
Answer:
The difference in the lengths of the old and the new bike trails is 2.915 kilometers.
Step-by-step explanation:
The park behind James's house used to have a bike trail that was 12.347 kilometers long.
Last year, the trail was reduced to 9.432 kilometers to make space for a meditation garden.
So, the difference in lengths is = kilometers
Therefore, the difference in the lengths of the old and the new bike trails is 2.915 kilometers.
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Answer:
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Step-by-step explanation:
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The area of forest after 5 years is 2846.93 square kilometer
<em><u>Solution:</u></em>
Given that, A certain forest covers an area of 4500 square kilometer
Suppose that each year this area decreases by 8.75%
To find: Area after 5 years
<em><u>The decrease function is given as:</u></em>
Where,
y is the value after t years
A = initial amount
r = decreasing rate in decimal
t is the number of years
Here in this sum,
A = 4500
t = 5 years
<em><u>Substituting the values in formula, </u></em>
Thus the area of forest after 5 years is 2846.93 square kilometer