Final answer:
Using the information given about the students' preferences for the two museums.
Then solving for the total number of students, will get 6th-grade students = x/0.75.
Step-by-step explanation:
To find the number of 6th-grade students at West Village Middle School, we can use the information given about the students' preferences for visiting the Museum of Math or the Museum of Natural History.
Let's assume the number of students who chose the Museum of Natural History is x.
According to the problem, 75% of the students chose the Museum of Math, which means 75% of the total number of students at the school.
We also know that the number of students who chose the Museum of Math is 30 more than the number of students who chose the Museum of Natural History. So, we can set up an equation:
- The number of students who chose the Museum of Math = 75% of the total number of students
- The number of students who chose the Museum of Natural History = x
- The number of students who chose the Museum of Math = x + 30
Setting up the equation: x + 30 = 75% of the total number of students
Rewriting 75% as a decimal: x + 30 = 0.75(total number of students)
Solving for the total number of students:
- Subtract 30 from both sides: x = 0.75(total number of students) - 30
- Divide both sides by 0.75: x/0.75 = total number of students
So, the total number of 6th-grade students at West Village Middle School is x/0.75.