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! :-)
In Ms. Gonzalez 3rd period class of 20 students, 75% students have an older sibling. How many students are in the class?
3 answers
35 total students in the class.
It would help if you proofread your questions before you posted them.
You already stated, "Ms. Gonzalez 3rd period class of 20 students"
You already stated, "Ms. Gonzalez 3rd period class of 20 students"