7x+5=22解方程

相关推荐

• FeS的电离中c(Fe+)*c(s2-)=6.25*10^-18,又知溶液中,[c(H+)]^2*c(S2-)=1*10^-22现将适量的FeS,投入饱和溶液中,要使溶液的c(Fe2+)达到1mol/L,应调节溶液的PH为多少?
• 520除以一个数，商23余14，则除数是（　　）A. 23B. 22C. 21D. 20
• 英语翻译The folks in Arkansas are serious about getting you your money -- if you're entitled to it.Last year,that unclaimed treasure trove of everything from cash to diamonds and guns was valued at $22 million.
• 两组同学跳绳,甲组有25人,平均每人跳80下,乙组有20人,平均每人比甲乙组的平均数多5个,求两组同学每人平均跳多少下算术法要是用方程的话把解方程的过程写完整哈
• 小明把棱长为4的正方体分割成了29个棱长为整数的小正方体，则其中棱长为1的小正方体有（　　）A. 22个B. 23个C. 24个D. 25个
• 520除以一个数，商23余14，则除数是（　　）A. 23B. 22C. 21D. 20
• 1.圆锥的母线长为L,高为1/2L,则过圆锥顶点的最大截面的面积是（ ）2.用两个平行平面截半径为5的球,所得圆面的周长分别为6π和8π,则这两个截面之间的距离为____3.将一个边长为10的大正方体的表面涂成红色后,再切成边长为1的小正方体,这些小正方体中至少有一面涂成红色的个数是4.长方体的表面积是22.所得棱长的和为24,则对角线长为________5.用一个平行于圆锥底面的平面截这个圆锥,截得的这个圆台上、下底面的半径是1:4.,截去的圆锥的母线长为3cm,求截得的圆台的母线长.
• Section A Directions:阅读Mary和Tim之间对话的下一部分,选择will或to be going to将对话补充完整Tim:Did you do all your job?Mary:Almost.Dave spoke to his dad.21 (We’ll / We’re going to) borrow his van.I’ve booked a hotel.22 (We’ll / We’re going to) stop at the hotel on the way to the gig to collect the keys,because we’ll be very late that night.Tim:What about feeding your cats?Mary:Oh no!I completely forgot!23 (I’ll/I’m going to) ask the neighbor.Tim:Don’t worry.24 (I’ll/I’m go
• 2012广东高考英语语法填空答案疑问17题为什么是would buy而不是had bought；；22题为什么是which而不是who；；24题为什么是if/whether而不是what原文和我做的答案：Mary will ever forget the firsttime she saw him.He suddenly appeared in class one day ,__16wearing_(wear) sun glasses .He walked in as if he __17would buy（had bought?）___(buy) the school,And the word quickly got around that he was from New York City.For some reason he sat besideMary.Mary felt _____18pleased_ (please),because there were many empty seat
• 2011湖北高考英语卷中的两道单选题.虽然没有财富值,22.Giving up my job to go back to full-time education was a big _________,but now I know it was the best decision I ever made.A.project B.commitment C.competition D.ambition这题为什么选B 30.When asked about their opinions about the schoolmaster,many teachers would prefer to see him step aside _______ younger men.A.in terms of B.in need of C.in favor of D.in praise of这题为什么选C
• 高一英语周报2012到2013学年第12期（总第3136期）的选择题答案!
• 一株遗传因子组成为Aa的玉米自交,F1种子胚乳的基因型可能有几种 2 4 6 8?