Question If a rectangle has a length that is three times the width increased by 4. Find the dimensions of both the length and width if the perimeter of the rectangle is 80 centimeters

Answer: Step-by-step explanation: Formula The formula for perimeter is P = 2L + 2w Givens Let the width = w Length = 3w + 4 P = 80 cm Solution P = 2L + 2w 80 = 2(3w + 4) + 2w Remove the brackets 80 = 6w + 8 + 2w Combine 80 = 8w + 8 Subtract 8 from both sides 80-8 = 8w + 8-8 Combine 72 = 8w Divide both sides by 8 72/8 = 8w’8 9 = w Answer w = 9 L = 3*w + 4 L = 3*9 + 4 L = 31 Log in to Reply

Answer:Step-by-step explanation:FormulaGivensSolutionAnswerw = 9L = 31