在水中长方体的体积V=sh=4×4×12=192㎝³
水上升了h=192÷80=2.4㎝
此时水深为12+2.4=14.4㎝
4×4×12=192
80-4×4=64
192÷64=3
12+3=15
现在水深15
不知,自己的作业自己做!不要靠别人!!!!!!!!!!!!!!!!!!!~~~~!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!~
条件不全
打完整~!!