a certain mixture of nuts consists of 5 parts almonds to 2 parts walnuts , by weight . what is the number of pounds of almonds in 280 pounds of the mixture ?
n0 = 5.0
n1 = 2.0
n2 = 280.0
t0 = n0 + n1
t1 = n0 * n2
answer = t1 / t0
print(answer)