意思是說(shuō)Ann有100元（美元當(dāng)人民幣了）,買7只陶瓷貓,其中3只比另外4只貴3元.她買完后還有7元,問(wèn)2中貓的價(jià)格.
設(shè)便宜的貓X元,貴的貓X+3元.3（X+3）+4X=93,所以X=12,
所以便宜的貓12元,貴的貓15元.
Ann had $100.She used part of her money to buy 7 ceramic cats,in which 3 of them are more expensive than the rest by $3.
Ann had $100.She used part of her money to buy 7 ceramic cats,in which 3 of them are more expensive than the rest by $3.If she had $7 left,how much do the two types of ceramic cat cost?
英語(yǔ)人氣：533 ℃時(shí)間：2020-05-15 12:23:39
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