鸡与兔共有80只,鸡的脚比兔的脚多52只.鸡、兔各有多少只?
问题描述:
鸡与兔共有80只,鸡的脚比兔的脚多52只.鸡、兔各有多少只?
答
设鸡有x只,则兔子就有80-x只,根据题意可得方程:2x-4(80-x)=52, 2x-320+4x=52, 6x=372, &nbs...
鸡与兔共有80只,鸡的脚比兔的脚多52只.鸡、兔各有多少只?
设鸡有x只,则兔子就有80-x只,根据题意可得方程:2x-4(80-x)=52, 2x-320+4x=52, 6x=372, &nbs...