Re: [問題] 濤濤數學三
※ 引述《qqopqqop (p )》之銘言：
: 麻煩高手幫我一下
: 18 Last year the price per share of Stock x increased by k percent and
: the earnings per share of stock x increased by m percent, where k
: is greater than m. By what percent did the ration of price per share to
: earnings per share increase, in terms of k and m?
: ans 100(k-m)/(100+m)percent
: 14 How many seconds will it take for a car that is traveling at a constant
: rate of 45 miles per hour to travel a distance of 22 yards? 1 mile=1160yards
: ans10
: 我怎麼算都算到小數耶><
: 15 If n and k are positive integers, is n/k an even integer?
: a n is divisible by 8
: b k is divisible by 4
: ans E
: 我自己選d
: 希望有人可以幫忙一下 感恩
NO.18 請參照1693
NO.20 你是不是看錯數字啦?
我查過1mile=1760yards喔!
NO.30 舉例: 當n=8,k=8時，n/k=1 不是偶數
n=16, k=8時，n/k=2 為偶數 因此不能確定#
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08/18 16:58, , 1F
08/18 16:58, 1F
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