on sunday , bill ran 4 more miles than he ran on saturday . julia did not run on saturday , but she ran twice the number of miles on sunday that bill ran on sunday . if bill and julia ran a total of 36 miles on saturday and sunday , how many miles did bill run on sunday ?
n0 = 4.0
n1 = 36.0
t0 = n0 * 2.0
t1 = n0 + t0
t2 = n1 - t1
t3 = t2 / n0
answer = n0 + t3
print(answer)