（a）（900-405）/900=55%
（b）（900-405-306）/（900*40%）=52.5%
（c)900*40%*（1-52.5%）=171
百分數(shù)數(shù)學題,懂英語和數(shù)學的來!
百分數(shù)數(shù)學題,懂英語和數(shù)學的來!
there are 900 students in a school ,and 405 of them are boys.Also,60% of the students are in junior forms,and 306 of them are girls.
（a）What percentage of the students are girls in the school?
(b)What percentage of the senior students are girls?
(c)How many boys are there in senior forms?
答案我都知道,就是要算式
there are 900 students in a school ,and 405 of them are boys.Also,60% of the students are in junior forms,and 306 of them are girls.
（a）What percentage of the students are girls in the school?
(b)What percentage of the senior students are girls?
(c)How many boys are there in senior forms?
答案我都知道,就是要算式
英語人氣：344 ℃時間：2019-10-08 11:23:26
優(yōu)質(zhì)解答
我來回答
類似推薦
- 懂英語和數(shù)學的來!求算式!
- 百分數(shù)數(shù)學題
- 我想做一道數(shù)學題用英語怎么說
- X比五等于零點八比二點八
- 數(shù)學題【比例方面】
- 社會發(fā)展的根本動力是（ ）.A．階級斗爭 B．生產(chǎn)力和生產(chǎn)關系的矛盾 C．社會改革 D．社會革命
- 五年級語文下冊《奇怪的圣誕包裹》的分析,明天要交,
- 用“梗咽、蹣跚、炫耀、憧憬”寫一段話
- He works on a farm.(改為一般疑問) Does he
- A:Wat is that over there?B:( A:( ) the table.B:oh,it is a basketball.每空一詞
- We have there m_____a day,breakfast,lunch and supper的空格中填什么?
- 若2m-4與3m-1是同一個數(shù)的平方根，則m為_．
猜你喜歡
- 1when it's spring in beijing,it's(?)in Sydney A.fall B.winter Cspring
- 2小華和小明同時計算一道整式乘法題（2x+a）（3x+b）．小華把第一個多項式中的“抄成了-a，得到結(jié)果為6x2+11x-10；小明把第二個多項式中的3x抄成了x，得到結(jié)果為2x2-9x+10． （1）你知道式子中
- 3請你設計一條以環(huán)保、可持續(xù)發(fā)展為主體的公益廣告
- 40.6+7/15x=2
- 5已知A={x|x^2+2x+P=0},且A∩｛x|x＞0}=空集,求實數(shù)P的取值范圍.
- 6實數(shù)a，b在數(shù)軸上的對應點如圖所示，則下列不等式中錯誤的是（ ） A.ab＞0 B.a+b＜0 C.ab＜1 D.a-b＜0
- 7若a>1,b>1,log2b×log2a=16,則log2(ab)的最小值為____
- 8能從生物學的角度簡單說說大腦的反應速度與神經(jīng)回路的關系嗎?
- 9標朗讀節(jié)奏和重音
- 10生物體的大小是與細胞的大,還是細胞的數(shù)量有關?
- 11《歸園田居》中具體描寫勞動情景的詩句是 ：,.
- 12取一定質(zhì)量的CO和CO2的混合氣體，通入足量的Ba（OH）2溶液中，充分反應后過濾，發(fā)現(xiàn)生成的沉淀和所取的混合氣體質(zhì)量相等．求混合氣體中，碳原子與氧原子的個數(shù)比．