At a party, 4 identical tables are placed side by side in a line. The dimension of each table is #x# by #2.5x -3#. What is the perimeter of the rectangle formed by all the tables together?

1 Answer
Jim G.
Dec 17, 2017

#22x-24#

Explanation:

#"the perimeter of a rectangle "=2l+2b#

#"where l is the length and b the breadth"#

#"here the breadth "=x#

#"and length "=color(red)(4)(2.5x-3)larrcolor(red)"4 tables "#

#color(white)(xxxxxxxx)=10x-12#

#rArr"perimeter "=2x+2(10x-12)#

#color(white)(xxxxxxxxxx)=2x+20x-24#

#color(white)(xxxxxxxxxx)=22x-24#

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