设平均每千克苹果x元
15x-11x=6.4
x=1.6
平均每千克苹果1.6元
一箱苹果15千克,一箱苹果11千克,两箱苹果的价钱一样,小红比小丽少花6.4元.问平均每千克苹果多少钱
一箱苹果15千克,一箱苹果11千克,两箱苹果的价钱一样,小红比小丽少花6.4元.问平均每千克苹果多少钱
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数学人气:502 ℃时间:2019-11-23 03:19:04
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