Answers

2014-08-03T12:08:30+08:00
I think 19 .44meter po using trial and error natutunan ko lang po nung grade six ......try mo......8.22x2=16.44 then 16.44+3=19.44 last is 19.44x8.22=159.7968 e round off mo lang.............i hope natulongan kita ginamit ko lang po kasi email adress ng ate ko walang magawa eh trip ko ang math..........

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2014-08-03T13:34:20+08:00
Let x be the width
2x+3 - length

A=lw
160m²=x(2x+3)
2x²+3x-160=0

Using the quadratic formula to get the value of x
x = -3+√(3)²-4(2)(-160)/2(2)
  = (-3+√9+1280)/4
  = (-3+√1289)/4   or  (-3-√1289)/4
  =  32.9/4  or -38.9/4
x= 8.225 or - 9.725

Substituting the positive value of x in the equation then
Width ≈ 8.225 m
Length ≈ 19.45 m

Then the length is approx. 19.45 m
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