æŸå·¥åŽ‚第一å£åº¦ç”¨åŽ»ç”µè´¹aå…ƒ,用去&ccedi
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æŸå·¥åŽ‚第一å£åº¦ç”¨åŽ»ç”µè´¹aå…ƒ,用去&ccedi
æŸå·¥åŽ‚第一å£åº¦ç”¨åŽ»ç”µè´¹aå…ƒ,用去的水费比电费的2å€å°‘40å…ƒ,第二å£åº¦ç”µè´¹èŠ‚约了20%,水费多支出5%,计算该厂第二å£åº¦æ°´è´¹çš„支出比第一å£åº¦èŠ‚约了多少元?
æ ¹æ®â€œç”¨åŽ»çš„水费比电费的2å€å°‘40å…ƒâ€å¯çŸ¥æ°´è´¹æ˜¯ï¼ˆ2a-40)元,电费节约å¯20%,电费就是80%a,水费多了5%,水费就是210%a-42,比第一å£åº¦èŠ‚约了
翻译一下
æŸå·¥åŽ‚第一å£åº¦ç”¨åŽ»ç”µè´¹aå…ƒ,用去&ccedi
天!oh my lady gaga