问一道英文数学题（大学水平）
AstoreadvertisesaHDplasmatelevisionscreenforareducedpriceof$2999aftera$50trade-inonan...
A store advertises a HD plasma television screen for a reduced price of $2999 after a $50 trade-in on any old working television.
(a) What percentage discount does the old television represent?
(b) If the store offers a further discount of 15% off the reduced price for cash, what price (to the nearest dollar) would the plasma television be now after a trade-in?
(c) A customer with a trade-in offers the store a $2600 cash price for the plasma television. Is that a better deal (for the customer) than the store is offering? 展开
(a) What percentage discount does the old television represent?
(b) If the store offers a further discount of 15% off the reduced price for cash, what price (to the nearest dollar) would the plasma television be now after a trade-in?
(c) A customer with a trade-in offers the store a $2600 cash price for the plasma television. Is that a better deal (for the customer) than the store is offering? 展开
1个回答
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（a）50/2999≈1.67%
（b）2999*(1-15%)=2249.25
（b）2999*(1-15%)=2249.25
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