Question

Batman is 4 times robins age. The sum has f their ages is equal to 45. How old is Batman and robin?

Answer 1

Robin is 9 years old and Batman is 36 years old

Explanation:

Batman: 4x

Robin: x

4x + x = 45

5x = 45

x= 9

Answer 2

Hey there! :D

f= 4x+x

Where f is their total ages, and x is Robin's age. Batman's age is 4 times Robin's.

Plug in what you know.

45=4x+x

45=5x

x=9

Robin is 9.

9*4= 36

Batman is 36.

I hope this helps!
~kaikers