SOLUTION: Sheet metal trades: The length of a piece of sheet metal is twice the width. The difference in length and width is 20 in. What are the dimensions?

Question 115262: Sheet metal trades:
The length of a piece of sheet metal is twice the width. The difference in length and width is 20 in. What are the dimensions?
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

The length of a piece of sheet metal is the width ; then,
The in length and width is :

the dimensions are:
��.(1)
��(2)�.solve this linear system by substitution
Substitute (1) in (2)

��...................the width is
now find the length

..............the length is

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