Respuesta :
Let age of Robins=r
Then age of Batman =4r
Sum of ages=45
r+4r=45
5r=45
r=9
Age of Robin= 9 years
Age of batman=4(9)= 36 years
Answer: Robin is 9 years old and Batman is 36 years old.
Then age of Batman =4r
Sum of ages=45
r+4r=45
5r=45
r=9
Age of Robin= 9 years
Age of batman=4(9)= 36 years
Answer: Robin is 9 years old and Batman is 36 years old.
Robin is x Batman is 4x
sum is 5x and it equals 45
Robin is 9 (x) and Batman 36
sum is 5x and it equals 45
Robin is 9 (x) and Batman 36