polenech polenech
  • 09-04-2015
  • Mathematics
Answered

find the length and width of a rectangular lot with a perimeter of 68m if the length is 6m more than the width



Answer :

AyaZ
AyaZ AyaZ
  • 09-04-2015
[tex]l=w+6[/tex]
[tex]P=2(l+w)=68[/tex]
[tex]P=2((w+6)+w)=2(2w+6)=4w+12=68[/tex]
[tex]4w=56 \\ w=14[/tex]
[tex]l=w+6=14+6=20[/tex]
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