A land mass is roughly in the shape of a rectangle whose perimeter is 1100 miles. The width is 110 miles less then the length. What is the width?

1 Answer
G_Dub
Apr 6, 2018

The width is 220 miles.

Explanation:

Let the width be #w#.

The perimeter of a rectangle is #2times(#length#+#width#)#
and length #=w+110#

#1100 = 2times(w+110+w)#
#1100=2times(2w+110)#
#1100=4w+220#
#880=4w#
#220=w#

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