Example18 - Now solve for the remaining variable 48 = 2 l...

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Example 1 Find the length of a rectangle (see Figure 1) if its perimeter is 48 inches and its width is 8 inches.  An appropriate formula is  p  = 2  l  + 2  w , where  p  represents the perimeter,  l  the length, and  w  the  width of the rectangle. Replace each variable with its known value. 
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Unformatted text preview: Now, solve for the remaining variable. 48 = 2 l + 16 Add –16 to both sides. 32 = 2 l Multiply each side by (or divide each side by 2). 16 = l Check with the original problem. The length of the rectangle is 16 inches. Figure 1. Perimeter of a rectangle....
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