SAT High School

under certain class of 70 students 4/7 of the students are boys in the ratio of students to Musa older students less than 10 years is 2 to 3 if 2/3 of the girls are less than 10 years old how many boys are 10 years old or older

Answers

Answer 1

Answer:

There are 8 boys who are less than 10 years old, and the remaining 32 boys are 10 years old or older.

Explanation:

- The class has 70 students.

- 4/7 of the students are boys. This means there are 4/7 x 70 = 40 boys in the class.

- The remaining 30 students are girls.The ratio of students to Musa older than 10 years is 2 to 3. Let's assume that there are a total of 5 groups of students (2 + 3 = 5), with each group having a certain number of students. Then, we can represent the total number of students older than 10 years as 3/5 of the total number of students, and the total number of students less than 10 years as 2/5 of the total number of students.

- 2/3 of the girls are less than 10 years old. This means there are 2/3 x 30 = 20 girls who are less than 10 years old, and the remaining 10 girls are 10 years old or older.

Now we need to figure out how many boys are 10 years old or older. We know that there are 40 boys in total, and we also know that the total number of students older than 10 years is 3/5 of the total number of students. This means that there are 3/5 x 70 = 42 students older than 10 years.

If we assume that all 10 girls who are 10 years old or older are part of the group of students older than 10 years, then the total number of students who are 10 years old or older is 40 boys + 10 girls = 50 students. Since there are 42 students older than 10 years, this means that there are 8 boys who are less than 10 years old.

Therefore, there are 8 boys who are less than 10 years old, and the remaining 40 - 8 = 32 boys are 10 years old or older.

I hope this helps! And if you could label my answer brainliest that would be awesome.

- Dante

Answer 2

In a class of 70 students, 4/7 are boys. The ratio of students to Musa's age (less than 10 years) is 2:3.

How to find the ratio

If 2/3 of girls are also less than 10 years old, we can find the number of boys aged 10 or older.

Since 4/7 of 70 students are boys (40 students), and the ratio for Musa's age is 2:3, there are 2/5 (40 * 2/5 = 16) boys less than 10 years old.

This means 40 - 16 = 24 boys are 10 years old or older.

Read more about ratio here:

https://brainly.com/question/12024093

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