Question 78557
Let W=width
Then length(L)=2W-5

Perimeter(P)=2L+2W or

230=2(2W-5)+2W  get rid of parens
230=4W-10+2W  add 10 to both sides

230+10=4W+2W-10+10  collect like terms

240=6W  divide both sides by 6

W=40 ft-------------------------------------width

2W-5=2*40-5=80-5=75 ft ------------------------length

CK

230=2(75)+2(40)=

230=150+80
230=230
also 75=2*40-5
75=75



Hope this helps----ptaylor