SOLUTION: Glenn cuts half a rectangular lawn, 40 m by 30 m, by mowing strips of equal width around the perimeter. Brad cuts the small rectangle left. How wide a strip does Glenn cut so that
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Question 825286: Glenn cuts half a rectangular lawn, 40 m by 30 m, by mowing strips of equal width around the perimeter. Brad cuts the small rectangle left. How wide a strip does Glenn cut so that they share the work equally?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
w = the width along perimeter which Glenn cuts.
The whole lawn area is 40*30 m^2.
The area cut, .
That area cut is half the lawn area.
Solve this equation:
Continuing a bit:
seems not factorable;
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