总述:本次共解1题。其中
☆算术计算1题
〖1/1算式〗
作业:求算式 (442.9×10^3)/(0.994×7916.8×215)+(0.85×14.7×10^6)/(1.15×819724.71×(1-(0.8×442.9)/157459.87)×215) 的值.
题型:数学计算
解:
(442.9×10^3)/(0.994×7916.8×215)+(0.85×14.7×10^6)/(1.15×819724.71×(1-(0.8×442.9)/157459.87)×215)
=442900/(0.994×7916.8×215)+(0.85×14.7×10^6)/(1.15×819724.71×(1-(0.8×442.9)/157459.87)×215)
=442900/1691899.328+(0.85×14.7×10^6)/(1.15×819724.71×(1-(0.8×442.9)/157459.87)×215)
=442900/1691899.328+12495000/(1.15×819724.71×(1-(0.8×442.9)/157459.87)×215)
=442900/1691899.328+12495000/(1.15×819724.71×(1-354.32/157459.87)×215)
=442900/1691899.328+12495000/(1.15×819724.71×0.99775×215)
=442900/1691899.328+12495000/202220911.444795
=0.261777+12495000/202220911.444795
=0.261777+0.061789
=0.323566 答案:(442.9×10^3)/(0.994×7916.8×215)+(0.85×14.7×10^6)/(1.15×819724.71×(1-(0.8×442.9)/157459.87)×215)=0.323566你的问题在这里没有得到解决?请到 热门难题 里面看看吧!