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)![]() ![]() ![]() 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 \n" ); document.write( " |