Question

ПОМОГИТЕ СРОЧНО!!! В таблице даны результаты олимпиад по математике и обществознанию в 10"А" классе.5005 49 58 5006 99 55 5011 72 97 5015 48 61 5018 53 97 5020 87 68 5025 98 75 5027 89 55 5029 55 53 5032 31 58 5041 66 33 5042 81 32 5043 54 59 5048 57 96 5054 89 88 Похвальные грамоты дают тем школьникам,у кого суммарный балл по двум олимпиадам больше 140 или хотя бы по одному предмету набрано не меньше 75 баллов.Сколько человек из 10"А",набравших меньше 75 баллов по математике,получат похвальные грамоты? 1)3 2)1 3)2 4)4 Объясните решение пожалуйста

Answer 1

Сначала в левом столбике нужно отметить тех, у кого меньше 75, а в правом у кого больше 75, но не всех, а только из тех, кто был отмечен в левом столбике. Затем, из всех тех, кто был отмечен в обоих столбиках, посчитать у кого сумма баллов больше 120.

Answer 2

To solve this problem, we need to analyze the results of the math Olympiad in class 10A and determine how many students who scored less than 75 points in math will receive commendation certificates.

Step 1: Analyzing the Results

Let's break down the results of the math Olympiad in class 10A:

| Student | Math Score | |---------|------------| | 5005 | 49 | | 5006 | 99 | | 5011 | 72 | | 5015 | 48 | | 5018 | 53 | | 5020 | 87 | | 5025 | 98 | | 5027 | 89 | | 5029 | 55 | | 5032 | 31 | | 5041 | 66 | | 5042 | 81 | | 5043 | 54 | | 5048 | 57 | | 5054 | 89 |

Step 2: Calculating the Number of Students with Less than 75 Points in Math

We need to determine how many students scored less than 75 points in math. Let's go through the math scores and count the number of students who scored less than 75.

From the table, we can see that the following students scored less than 75 points in math: - Student 5005: 49 points - Student 5015: 48 points - Student 5032: 31 points

Therefore, there are 3 students who scored less than 75 points in math.

Step 3: Determining the Number of Students Eligible for Commendation Certificates

According to the given criteria, students are eligible for commendation certificates if their total score in both math and social studies is greater than 140 or if they scored at least 75 points in either subject.

Since we are only concerned with the number of students who scored less than 75 points in math, we can ignore the social studies scores.

Therefore, the number of students who scored less than 75 points in math and will receive commendation certificates is 3.

Based on the given options, the correct answer is 1) 3.

I hope this explanation helps! Let me know if you have any further questions.