计算;(-24)乘以(1-4分之3+6分之1-8分之5)
人气:468 ℃ 时间:2019-11-19 06:23:50
解答
(-24)乘以(1-4分之3+6分之1-8分之5)
=-24×1+(-24)×(-3/4)+(-24)×1/6+(-24)×(-5/8)
=-24+18-4+15
=33-28
=5;
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,凌家滩水库6月底的水位与标准水位持平,记录为0mm,7月平均每天水位上涨17.3mm,8月平均每天水位下降27.3mm,求8月底凌家滩水库的水位.水位=0+31×17.3+31×(-27.3)=31×(17.3-27.3)=31×(-10)=-310;所以水位下降310毫米
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