document.write( "Question 628528: hello, i have this question that says: the length of a rectangle is 5cm more than its width. If the width of the rectangle is y, find an expression for the area of the rectangle. How do i figure it out!? Sorry i also have another question, how do you do this one: A rhombus has side length 8x cm. One diagonal measures 12cm and the other measures 6x - 8cm. Find the area of the rhombus if area = perimeter. Thats the question and i don't have a clue how to complete it. Thankyou! \n" ); document.write( "
Algebra.Com's Answer #395695 by John10(297)![]() ![]() You can put this solution on YOUR website! 1)\r \n" ); document.write( "\n" ); document.write( "The length of a rectangle is 5cm more than its width. If the width of the rectangle is y, find an expression for the area of the rectangle.\r \n" ); document.write( "\n" ); document.write( "So the length will be y + 5 and the width is y\r \n" ); document.write( "\n" ); document.write( "The area of the rectangle is A = length * width\r \n" ); document.write( "\n" ); document.write( "You can finish from there:)\r \n" ); document.write( "\n" ); document.write( "2)\r \n" ); document.write( "\n" ); document.write( "A rhombus has side length 8x cm. One diagonal measures 12cm and the other measures 6x - 8cm. Find the area of the rhombus if area = perimeter.\r \n" ); document.write( "\n" ); document.write( "Area = 12(6x - 8)/2 = 6(6x -8) = 36x - 48 (cm)^2\r \n" ); document.write( "\n" ); document.write( "Perimeter = 4(8) = 32 cm\r \n" ); document.write( "\n" ); document.write( "Since Area = perimeter,\r \n" ); document.write( "\n" ); document.write( "36x - 48 = 32 \n" ); document.write( "36x = 80 \n" ); document.write( "x = 80/36 \n" ); document.write( "x = 2.2\r \n" ); document.write( "\n" ); document.write( "Area = 36(2.2) - 48 = 31.2 cm^2\r \n" ); document.write( "\n" ); document.write( "John10:) \n" ); document.write( " \n" ); document.write( " |