请高手帮忙解一道英文数学题Two shops sell the same brand of chocolate at the same price . Today they both cut down its price. Shops A decreases the price by 30%, and increases by 30% after a week. Likewise, shop B decreases its price by 4
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![请高手帮忙解一道英文数学题Two shops sell the same brand of chocolate at the same price . Today they both cut down its price. Shops A decreases the price by 30%, and increases by 30% after a week. Likewise, shop B decreases its price by 4](/uploads/image/z/1068033-57-3.jpg?t=%E8%AF%B7%E9%AB%98%E6%89%8B%E5%B8%AE%E5%BF%99%E8%A7%A3%E4%B8%80%E9%81%93%E8%8B%B1%E6%96%87%E6%95%B0%E5%AD%A6%E9%A2%98Two+shops+sell+the+same+brand+of+chocolate+at+the+same+price+.+Today+they+both+cut+down+its+price.+Shops+A+decreases+the+price+by+30%25%2C+and+increases+by+30%25+after+a+week.+Likewise%2C+shop+B+decreases+its+price+by+4)
请高手帮忙解一道英文数学题Two shops sell the same brand of chocolate at the same price . Today they both cut down its price. Shops A decreases the price by 30%, and increases by 30% after a week. Likewise, shop B decreases its price by 4
请高手帮忙解一道英文数学题
Two shops sell the same brand of chocolate at the same price . Today they both cut down its price. Shops A decreases the price by 30%, and increases by 30% after a week. Likewise, shop B decreases its price by 40%, and decreasesby 40% after a week. Are the prices of the chocolate at the two shops still the same after a week?
请高手帮忙解一道英文数学题Two shops sell the same brand of chocolate at the same price . Today they both cut down its price. Shops A decreases the price by 30%, and increases by 30% after a week. Likewise, shop B decreases its price by 4
不一样,假设开始时价格为P,对于商店A,一周之后为P×0.7×(1+0.3),而对于商店B,一周之后为P×0.6×﹙1+0.4﹚
假如两个原价都为100元,那么A:100(1-30%)=70 70*(1+30%)=91
B:100*(1-40%)=60 60*(1+40%)=84 所以不相等