如题所述
第1个回答 2012-03-26
4.5*3.6+5.2*0.35
第2个回答 2011-05-05
=0.5*9*4*0.9+1.3*4*0.5*0.7
=0.5*4*(9*0.9+1.3*0.7)
=2*(8.1+0.91)
=2*9.01
=18.02
=0.5*4*(9*0.9+1.3*0.7)
=2*(8.1+0.91)
=2*9.01
=18.02
第3个回答 2011-05-05
变成9*1.8+2.6*0.7
第4个回答 2011-05-06
变成9*1.8+2.6*0.7
=0.5*9*4*0.9+1.3*4*0.5*0.7
=0.5*4*(9*0.9+1.3*0.7)
=2*(8.1+0.91)
=2*9.01
=18.02本回答被网友采纳
=0.5*9*4*0.9+1.3*4*0.5*0.7
=0.5*4*(9*0.9+1.3*0.7)
=2*(8.1+0.91)
=2*9.01
=18.02本回答被网友采纳