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[匿名]

2014-03-12 5:01 am

羽毛球拍以七折出售,售價是315元,羽毛球拍的原價是多少元????????????????????????????????????????????????????

回答 (4)

鍚霖

2014-03-12 5:57 am

✔ 最佳答案

let x be the original price of the racket.
x(70％ )=315
x=315÷70％
x=450
The original price of the racket is 450 dollars

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[匿名]

2014-03-12 7:19 pm

450 .hope can help you

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[匿名]

2014-03-12 6:06 am

羽毛球拍的原價:
315+315x70％=450元

參考: me

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[匿名]

2014-03-12 5:12 am

315*10/7
=450

參考: 我

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