There are three classes in grade five. The number of students in class one accounts for 10 / 33 of the whole grade. The number of students in class three is 11 / 11 more than that in class two. If the number of students in class three is as large as that in class two after four students are transferred from class three,

The number of class 2 is 4 △ 1 / 11 = 44
The number of class three is 44 + 4 = 48
There are 132 fifth grade students (44 + 48) △ 1-10 / 33)
A: there are 132

There are three classes in grade five. The number of students in class one accounts for 10 / 33 of the whole grade. The number of students in class three is 1 / 11 more than that in class two. If four students are transferred from class three, the number is as large as that in class two. How many students are there in grade five? Who can answer this question?

According to the meaning of the question, the number of students in class three is 1 / 11 more than that in class two, that is, four
Number of class 2: 4 △ 1 / 11 = 44
Number of class 3: 44 + 4 = 48
Number of students in the whole grade: (44 + 48) / (1-10 / 33) = 132

The number of students in class one accounts for 10 out of 33 in the whole grade, and the number of students in class three is one out of 11 more than that in class two
How many students are there in this grade?

Because the number of class three is one eleventh more than that of class two, and the number of class two is equal after four people are transferred from class three, so the number of class two is 4 ／ one eleventh = 44
So the number of class three is 44 + 4 = 48
Because class one accounts for 10 out of 33 in the whole grade, class two and class three account for 23 out of 33 in the whole grade, so the number of students in the whole grade is (44 + 48) × 23 out of 33 = 132

There are three classes in Grade 6. The number of students in class 1 accounts for 10 / 33 of the whole grade. The number of students in class 3 is 1 / 11 more than that in class 2. If the number of students in class 3 is the same as that in class 2, how many students are there in Grade 6

Number of class 2: 4 △ 1 / 11 = 44
Class 2 and class 3: 44 × (1 + 1 + 1 / 11) = 92
1-10 / 33 = 23 / 33
Total number: 92 / 23 / 33 = 132

Given that {an} is an equal ratio sequence, an > 0, and a2a4 + 2a3a5 + a4a6 = 25, then the value of A3 + A5 is equal to?

If the first item is A1 > 0, then the first item will be A1 > 0, and the public ratio is Q > 0a2a4 + 2a3a5 + a4a6 = 25a1 & ; Q ^ 4 + 2A1 & \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\35;178; + a1q & #8308; = 5A3 + A5 = 5

It is known that SN is the sum of the first n terms of an, A5 = - 2, a8 = 16, S6 = 1

If the common ratio Q ^ 3 = A8 / A5 = 16 / (- 2) = - 8, then q = - 2
a1=a5/q^4=-2/(-2)^4=-1/8.
S6=a1(1-q^6)/(1-q)=-1/8*(1-(-2)^6)/(1+2)=-1/24*(1-64)=21/8

Height data belongs to A. name data B. order data C. equidistant data D. proportional data

A: 1. Name data, for example, the postal codes of all parts of the country are composed of 6 digits. These data are only category symbols, which have no substantive significance in quantity. Generally, this kind of data can not be added, subtracted, multiplied and divided, but usually the number of times or numbers can be calculated for each category. 2. Sequential data, for example, in each category

What is isometric data and what is isometric data

1. To understand "what is equal ratio data and what is equal distance data", you should know that there are four types of data: named data, sequential data, equal distance data and ratio data. 1.1, named data can be understood as "code" data, such as "1" for men and "2" for women

Why is it said that "in the isometric and isobaric scale experiment of psychophysics, only geometric mean can be used"?
Zhang Houcan's "modern psychology and educational statistics" is a liberal arts student. The answer should be easy to understand
What I want to know is why

The reason you want to ask is about the theoretical basis of psychophysics, or the reason why psychophysics requires geometric mean? Comrade, it's a little difficult to find such a professional answer to the question of only 30 points in total. Don't take it seriously here. Leave me a message if you have any questions. If you want to make a friend of psychology, it's OK to have a chat

The temperature on Monday is 20 ℃, so the temperature belongs to () A. nominal variable B. sequential variable C. equidistant variable D. ratio variable

D. Ratio variable, understand the calculation method of temperature, understand, know on the line

The number of students in class one accounts for 10 out of 33 in the whole grade, and the number of students in class three is one out of 11 more than that in class two How many students are there in this grade?