dannymandujano4 dannymandujano4
  • 01-06-2018
  • Mathematics
contestada

If the formula for the perimeter of a rectangle is P=2l+2w, then w can be expressed as

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mkryukova19 mkryukova19
  • 01-06-2018
 P=2l+2w, 
 P-2l=2l-2l+2w, 
P- 2l =2w
 (P-2l)/2=2w/2, 
w =  (P-2l)/2 or w = (P/2) - l
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