(i-18%)/(20%-18%)=(20-20.24)/(19.58-20.24)请列出一步一步计算的步骤,得出:i=18.73%(2分)

问题描述:

(i-18%)/(20%-18%)=(20-20.24)/(19.58-20.24)
请列出一步一步计算的步骤,得出:i=18.73%(2分)

(i-18%)/2% = -0.24/-0.66
i-18%=4/11乘以2/100
i=4/11乘以1/50 + 18%
=4/550 + 18%
=40/5500 + 990/5500
=1030/5500
=0.1872727
=18.73%