明明与同学去划船,双人船4元/小时,四人船7元/小时,17名同学玩1小时。 每名同学要花多少钱?怎样租船花钱最少?5R*l'R5E.c.A(i2~6t4H7o
算式:提示3b3d8F,T6M.j:^2I'C;V1Y:g5R*l'R5E.c.A(i2~6t4H7o
答:每名同学要花5c:X0Z5h4P)[元。5R*l'R5E.c.A(i2~6t4H7o
答:/~1n1~,s+H+h5^4P;b1N4p6W1C:X7u(]/F:d。5R*l'R5E.c.A(i2~6t4H7o