### Instruction: a ’ s speed is 21 / 19 times that of b . if a and b run a race , what part of the length of the race should a give b as a head start , so that the race ends in a dead heat ? Let's program in Python in the response.### Response: n0 = 21.0
n1 = 19.0
t0 = n0 - n1
answer = t0 / n0
print(answer)