5年级下暑假作业答案

若x:y:z=3:4:7时,且2x-y+z=36,求2x+3y-4z的值 (1-1/2的平方）*（1-1/3的平方）~（1-1/2009 (17 21:3:18)(1-1/2的平方）*（1-1/3的平方）~（1-1/2009的平方）= (1/2)A城气象台测得台风中心在A城正西方向320km的B处,并以每小时40km的速度向北偏东60度的方向移动.距离台风中心200km的范围内 ｛x=2y ｛2x－y=3 2x+y=3 x+2y=5 This is my school.改为一般疑问句 This is my school day 的特殊疑问句 This is my school.划线myschool改特殊疑问句 已知x+y+z=36,2x-y+z=18,求当x-y=1时,z的值 . 已知x+y+z=36,2x－y+z=18,则当x－y=1时,z= 1.Edison is a famous American ______(science).2.I want to be an ______(art).3.Mary is _____(interest) in reading.4.She likes _____ (paint).5.Mary I ask some ______ (question)? 如下图,小乌龟从A点爬到B点,可以沿着1线爬,也可以沿着2线爬.经过的路线长度一样吗?为什么?d 当x属于[0,π/2]时,求函数f(x)=sin(π/6-x)-cosx的值域 这些题的定义域和值域? 求函数的值域y=sin²x+cosx+1,x∈[-π/3,π/3] 2x+y=24 xy=36 x=?y=?31231 The first computer of the world is made by____.六年级上册寒假乐园上15页 被除数是除数的7倍,商是几. It is the first park in the world that was made to be seen at night.翻译 The world ___is made up of matterA.where we live in B.on which we live C.we live in 被除数是除数的7倍,商是多少 Swiss scientists have created the world's smallest electric car,which is made of a single moleculeand has four wheels.的翻译. 被除数比除数的7倍多5,如果被除数、除数、商与余数的和是361,那么被除数是多少?除数是多少? 被除数 除数 商三个数的和是287,被除数是除数的7倍,被除数和除数各是多少 如果x比y比z=1比3比5 则2x+3y-2z／x－3y＋2z分数线用/代替 2x=3y,y+2z=x,那么,y是z的几倍,x是z的几倍要方程的过程 ,而且要五年级的方式做 已知x:y:z=3:5:6,且2x-3y+3z+36,求3x+y-2z的值 X+Y=Z 2X-3Y+2Z=5 X+3Y-Z=3X+Y=Z2X-3Y+2Z=3X+3Y-Z=3 甲乙两艘军舰,从两个港口对开,甲舰每小时行42千米 乙舰每小时行38千米 .乙舰开1小时候,甲舰才开出.在经过4小时两舰相遇.两个港口相距多少千米 急 甲乙两艘军舰从两个港口相对开,甲舰每小时行42千米,乙舰每小时行38千米,乙舰开出一小时后,甲舰才开出,再经过4小时两舰相遇.两个港口相距多少千米? 甲乙两艘军舰,从两个港口相向开出,甲舰每小 时行42千米,乙舰每小时行38千米,乙舰 开出一小时后,甲舰才开出,再经过4小时 两舰相遇.两个港口相距多少千米? x²-12x+35=0 因式分解法