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Popular Word Problems >

The perimeter of a rectangle is 58 feet. If the length is 10 feet, find the width. Without substitution, solve the formula for the unknown variable in terms of the known variables.

Solution

T h e p er im e t er o f a rec t an g l e i s 58 f ee t . I f t h e l e n g t h i s 10 f ee t, f in d t h e w i d t h . Wi t h o u t s u b s t i t u t i o n, so l v e t h e f or m u l a f or t h e u nkn o w n v a r iab l e in t er m s o f t h e kn o w n v a r iab l es .

Solution

w i d t h : 19 f t

Solution steps

Given:

l e n g t h : 10 f t

p er im e t er : 58 f t

Rectangle Width

w

, given

P er im e t er = 58, l = 10 : w = 19

w i d t h : 19 f t

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