document.write( "Question 953400: the perimter of a rectangale is 54cm the length is 3 less than twice the width find the length and the width what is the anwser
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Algebra.Com's Answer #582355 by macston(5194)![]() ![]() You can put this solution on YOUR website! W=width; Length=L=2W-3; Perimeter=P=2(L+W) \n" ); document.write( "P=2(L+W) Substitute for L \n" ); document.write( "54cm=2((2W-3)+W) Divide each side by 2. \n" ); document.write( "27cm=3W-3 Add 3 to each side. \n" ); document.write( "30cm=3W Divide each side by 3. \n" ); document.write( "10cm=W ANSWER 1: The width is 10cm. \n" ); document.write( "L=2W-3=2(10cm)-3=20cm-3=17cm ANSWER 2: The length is 17 cm. \n" ); document.write( "CHECK: \n" ); document.write( "P=2(L+W) \n" ); document.write( "54cm=2(17cm+10cm) \n" ); document.write( "54cm=2(27cm) \n" ); document.write( "54cm=54cm \n" ); document.write( " \n" ); document.write( " |