兩道英文數(shù)學(xué)題,很簡單
兩道英文數(shù)學(xué)題,很簡單
我不知道我的理解對不,所以想看看大家的過程和結(jié)果和我一樣不
1.In a school, of the students are girls. A year later, the number of girls in the school is increased by and the number of boys is increased by . Find the percentage increase in the total number of students.
2.The marked price of a watch is 40% above its cost. If the watch is sold at a discount of 30%, find the percentage gain or loss.
我不知道我的理解對不,所以想看看大家的過程和結(jié)果和我一樣不
1.In a school, of the students are girls. A year later, the number of girls in the school is increased by and the number of boys is increased by . Find the percentage increase in the total number of students.
2.The marked price of a watch is 40% above its cost. If the watch is sold at a discount of 30%, find the percentage gain or loss.
英語人氣：951 ℃時間：2020-04-28 00:24:21
優(yōu)質(zhì)解答
1、在一所學(xué)校里,女生占學(xué)生總數(shù)的(?).一年后,這所學(xué)校的女生的數(shù)量增加了(?),同時男生的數(shù)量增加了(?).請問學(xué)生總數(shù)的增幅是多少?題目沒有給出數(shù)值（上邊的?處）,如果以xyz表示上述缺少的數(shù)值,可以確定計算式.沒原...
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