Megan wants to build a fence around her pool. The pool is 28 feet long by 23 feet wide. The fence is to be 15 feet from the edge
of the pool. How many feet of fencing will she need?
2 answers:
Answer: 222 feet
Step-by-step explanation:
Given: Megan wants to build a fence around her pool.
The dimensions of the pool is given by :-
28 feet long by 23 feet wide
Since, the fence is to be at distance of 15 feet from the edge of the pool.
Therefore, dimensions of the fence will be :-
(28+15+15) feet long by (23+15+15) feet wide= 58 feet long by 53 feet wide.
Now, the length of the fencing =
Hence, she will need 222 feet of fencing.
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To solve this problem you must apply the proccedure shown below:
1- You must apply the following formula:
Where is the residual,
is the observed value
and
is the predicted value
.
2- You only need to substitute the into the equation
and then, you must apply the formula for calculate the residual:
The answer is: The residual is