math
posted by natalie .
Raymond is planting a border of 48 seedlings that will completely surround a rectangular garden. He wants to plant the seedlings 2 feet apart. If the garden plot is 30 feet long, how wide should it be?

If it is 30 feet long, the other side is also 30 feet long. Thus, we have 30/15 + 1 = 16 saplings for one side. This, multiplied by 2 gives us 32 in all without the width. Now we only have
4832 = 16 saplings left. Each side minus 2.
Thus, we have x/21 saplings on each side.
this, multipled by 2, gives us x2 saplings.
Since we have 16 saplings, we get x= 18.
Plugging in for width, we get 18/2 1 = 8 for each side, and 16 for both.
Then we get 16+32 = 48 in all which works.
So the width is 18. 
thank u
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