What is the length of a rectangle if its perimeter is 279 feet and its length is 2.1 times its width?

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Answer 1 · 2015-11-13T07:08:55

45 feet

Given that

#perimeter=#279 f##

length=#2.1 width#

we know that

perimeter=2(length + width)

#perimeter = 2(2.1width + width)#

#perimeter=2(3.1xx width)#

#perimeter= 6.2xxwidth#

#279=6.2xxwidth#

#width=279/6.2#

#width=45 f#