x+y=150
x(1+15%)+y(1+10%)=170
x=150-y
1.15x+1.1y=170,1.15(150-y)+1.1y=170,0.05y=2.5,y=50,x=100.
A超市今年“五一”期间的销售额100元,B超市今年“五一”期间的销售额50元.
x+y=150
x(1+15%)+y(1+10%)=170
x=150-y
1.15x+1.1y=170,1.15(150-y)+1.1y=170,0.05y=2.5,y=50,x=100.
A超市今年“五一”期间的销售额100元,B超市今年“五一”期间的销售额50元.