It takes 0.84 meters (m) of ribbon tape to make one ribbon. If 50 centimeters (cm) remain after making 10 ribbons with the ribbon tape that Yujin has, find the length in meters (m) of the ribbon tape that Yujin had at first.
0.84 10 [OP_MUL] 50 100 [OP_DIV] [OP_ADD]
var_a = 0.84
var_b = 10
var_c = var_a * var_b
var_d = 50
var_e = 100
var_f = var_d / var_e
var_g = var_c + var_f
print('{:.2f}'.format(round(var_g+1e-10,2)))