Final answer:
When combining the number of students studying English and Mathematics, 5 students study both subjects in the class.
Explanation:
The number of students who study both English and Mathematics in the class can be found by adding the number of students studying English and Mathematics separately and then subtracting the total number of students in the class.
To find the number of students studying English and Mathematics, add the number of students studying English to the number of students studying Mathematics: 40 + 35 = 75.
Then, subtract the total number of students in the class (80) from this sum: 80 - 75 = 5.
Therefore, 5 students study both English and Mathematics in the class.
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