bellpreslee7839 bellpreslee7839
  • 01-09-2018
  • Mathematics
contestada

The width of a rectangle is 15 cm less than the length. the perimeter is 78 cm. find the rectangle's dimensions

Respuesta :

tramserran
tramserran tramserran
  • 07-09-2018

Length (L): L

width (w): L - 15

Perimeter (P) = 2L + 2w

                78 = 2(L) + 2(L - 15)

                78 = 2L + 2L - 30

                78 = 4L - 30

               108 = 4L

                27 = L

width (w): L - 15   = 27 - 15   = 12

Answer: width = 12 cm, length = 27 cm

Answer Link

Otras preguntas

If you are writing a persuasive essay in favor of banning vending machines in schools, which is a counterargument you might anticipate?
write words to match the expression. 24- ( 6+3)
If you are writing a persuasive essay in favor of banning vending machines in schools, which is a counterargument you might anticipate?
write words to match the expression. 24- ( 6+3)
If you are writing a persuasive essay in favor of banning vending machines in schools, which is a counterargument you might anticipate?
Which two numbers have a difference of 5 and a product of 3.36???
what other areas beside egypt did the new kingdom pharoahs conquer
Which two numbers have a difference of 5 and a product of 3.36???
Which two numbers have a difference of 5 and a product of 3.36???
If you are writing a persuasive essay in favor of banning vending machines in schools, which is a counterargument you might anticipate?