document.write( "Question 26017: If perimeter of rectangle is 40.And the width is 8, what is the lenth? \n" ); document.write( "
Algebra.Com's Answer #13969 by mathrebel(25)\"\" \"About 
You can put this solution on YOUR website!
Simple: the formula for perimeter of a rectangle is 2*(a+b), where a and b are the sides:
\n" ); document.write( "side b=8
\n" ); document.write( "side a=?
\n" ); document.write( "40=2*(a+8) divide by two both sides and get:
\n" ); document.write( "20=a+8 subtract 8 from both sides and:
\n" ); document.write( "a=12 whoala!!!
\n" ); document.write( "now plug it in back to check the answer:
\n" ); document.write( "is 40=2*(12+8)??
\n" ); document.write( "40=2*20
\n" ); document.write( "40=40 you betcha!!!!
\n" ); document.write( "good luck
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