8 mi. 133 yd. 2 ft. + 5 mi 107 yd. 2 ft.
1 answer:
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Answer:
The unknown number is 1.
Step-by-step explanation:
You have to form an expression. So let's make the unknown number as x. Firstly, a number is multiplied by 5 :
Secondly, 5 is added to product and you will get 10 :
Lastly, you have to solve :
Answer:
So then is required at least 210 ft in order to satisfy the conditions.
Step-by-step explanation:
For this case we can assume that the rectangular enclosure is on the figure attached.
The perimeter on this case is given by:
We know that the total area is and the total area is given this formula:
Because we have two identical rectangular pieces.
And we can find the value for W like this:
And then we can find the perimeter like this:
So then is required at least 210 ft in order to satisfy the conditions.