convert variable from int to float in Ruby

  int_var = 7
  float_var = int_var.to_f

This code snippet shows how to convert a variable from an integer to a float in Ruby. First, a variable called int_var is declared and assigned the integer value of 7. Then the to_f method is used to convert the variable int_var to a float, and the float is assigned to the variable float_var. The to_f method takes the integer value of int_var and converts it to the same value as a float. After the conversion, float_var now contains the float value of 7.0.