Posted by Bob on .
jackie mows a stip of uniform width around her 25m by 15m rectangular lawn and leaves a patch of lawn that is 60% of the original area. What is the width of the strip?

Grade 11 Math 
bobpursley,
2(15+2w)w+ 25*2w=.60(15*25)
check that 
Grade 11 Math 
Bob,
Thanks that seems to have worked the back of my text book says it is 2.1 but i got 2.5 close enough.

Grade 11 Math 
Siaga pfunzo,
2x+2=0