In Ms. Gonzalez 3rd period class of 20 students, 75% students have an older sibling. How many students are in the class?

Well, 75% of 20 is 15. So, 15 students have an older sibling. 15 + 15 = 30. Don't forget the remaining 5 students who don't have an older sibling!

15 + 15 + 5 = 35! :-)

35 total students in the class.

To find the number of students in Ms. Gonzalez's 3rd-period class, given that 75% of the students have an older sibling, you can follow these steps:

Step 1: Calculate the number of students who have an older sibling.
- Multiply the total number of students by the percentage (75%).

Number of students with older siblings = 20 students * 75% = 15 students

Step 2: Calculate the number of students without an older sibling.
- Subtract the number of students with older siblings from the total number of students.

Number of students without older siblings = Total Number of students - Number of students with older siblings
= 20 students - 15 students
= 5 students

Step 3: Calculate the total number of students.
- Add the number of students with older siblings to the number of students without older siblings.

Total number of students = Number of students with older siblings + Number of students without older siblings
= 15 students + 5 students
= 20 students

Therefore, there are 20 students in Ms. Gonzalez's 3rd-period class.

It would help if you proofread your questions before you posted them.

You already stated, "Ms. Gonzalez 3rd period class of 20 students"