Mini-survey

In our class's mini-survey about the popularity of individual subjects, it turned out that 11.1% of pupils like mathematics, 18.5% enjoy languages, 30.4% like physical education, and the remaining 12 pupils have several popular subjects. How many students are visiting our class?

Final Answer:

n =  30

Step-by-step explanation:

q1=11.1%=10011.1=0.111 q2=18.5%=10018.5=0.185 q3=30.4%=10030.4=0.304  q1 n+q2 n+q3 n+12=n 0.111 n+0.185 n+0.304 n+12=n  0.4n=12  n=0.412=30  n=30



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You need to know the following knowledge to solve this word math problem:

algebraarithmeticbasic operations and conceptsnumbersGrade of the word problem

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