To make ribbons in Dayeon's class, 10 students divided the ribbon tapes by 0.84 meters (m). If the ribbon tape had 50 centimeters (cm) left after it was divided, how many meters (m) were it before it was divided?
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)))