Respuesta :

Answer:

L=9

Step-by-step explanation:

Find the length of a rectangle whose breadth is 15 cm and perimeter is 48 cm.

perimeter = 2B +2L

48 = 2X15 +2L

48 = 30+ 2L

48-30 = 30-30+2L

18= 2L

18/2 =L

L=9