英语数学题(用中文解答）1.Two numbers added together make 56. A quarter of the first plus a third of the second make 16.2.A group of 7-year-olods are going to a park with a group of 11-year-olds.lf the average age of the two groups together

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/02 16:42:04
英语数学题(用中文解答）1.Two numbers added together make 56. A quarter of the first plus a third of the second make 16.2.A group of 7-year-olods are going to a park with a group of 11-year-olds.lf the average age of the two groups together

英语数学题(用中文解答）1.Two numbers added together make 56. A quarter of the first plus a third of the second make 16.2.A group of 7-year-olods are going to a park with a group of 11-year-olds.lf the average age of the two groups together
英语数学题(用中文解答）
1.Two numbers added together make 56.
A quarter of the first plus a third of the second make 16.
2.A group of 7-year-olods are going to a park with a group of 11-year-olds.lf the average age of the two groups together is 9.4 years,how many of each age group are there?

英语数学题(用中文解答）1.Two numbers added together make 56. A quarter of the first plus a third of the second make 16.2.A group of 7-year-olods are going to a park with a group of 11-year-olds.lf the average age of the two groups together
1 设一个数为x,另一个数为y.
x+y=56
x/4+y/3=16
解得
x=32
y=24
2 设7岁x人,11岁y人.
(7x+11y)/(x+y)=9.4
解得
x=2 y=3
或x=4 y=6
x=6 y=9
……

两个数相加等于56
第一个数的四分之一加上第二数的三分之一是16
一组7岁的和一组11岁的去公园。如果平均年龄是9.4岁，每组有多少人

1. X+Y=56 X/4+Y/3=16
所以，X=32 Y=24
2. 第一组和第二组的人数比为2：3就行了

设x和y
1.x+y=56且1/4x+1/3y=16
得x=32 y=24

英语数学题(用中文解答）1.Two numbers added together make 56. A quarter of the first plus a third of the second make 16.2.A group of 7-year-olods are going to a park with a group of 11-year-olds.lf the average age of the two groups together 求：NU'EST《Action》的中文歌词!中文! NU`EST的face中文意思是什么 NU LI JIA YOU中文是什么? 英语 许多、大量 a great/large _____(是q开头的） of +nu./nc. 请问,NU LI 和FEN DOU 用中文怎么写?汉语拼音的 nuli 和 fendou,怎么写 f(x)的NU ABO歌词中文意思是什么? 谁有 nu est 的 face 中文音译歌词 nu'est-face中文音译前面有加名字 数学题（小学方法解答） two用英语怎么说 请用中文解答.一步步 英语故事Two friend and bear的中文意思是什么 大家帮我解答一下用英语出的数学题 thanks1.How many committees of four can be formed from 20 Repiblicans and 15 Democrats if two members of each party must be the committee?2.How many committees of four can be formed from 20 Repiblicans 英语数学题,3道解答方式一样的, 数学题在线解答:二元一次方程（初中） 2002用英语怎么说?two thousand and two 还是two thousand two?200,2 英语（根据中文写出英文）1._______（现代）art is hard to understand.2.None of them know how to _____（解答）this problem.