At the newest animated movie, for every 9 children, there are 4 adults. There are a total of 39 children and adults at the movie.How many children are at the movie?children
Q. At the newest animated movie, for every 9 children, there are 4 adults. There are a total of 39 children and adults at the movie.How many children are at the movie?children
Ratio Relationship: Let's denote the number of children as C and the number of adults as A. According to the problem, for every 9 children, there are 4 adults. This gives us the ratio of children to adults as 9:4. We can express this relationship as AC=49.
Total Number Equation: We also know that the total number of children and adults is 39. This gives us the equation C+A=39.
Express A in terms of C: To find the number of children, we need to solve the system of equations:1) AC=492) C+A=39We can express A in terms of C using the first equation: A=(94)C.
Substitute A into Equation: Substitute A=94C into the second equation: C+94C=39.
Combine Like Terms: Combine like terms: 1+94C = 39. This simplifies to 99+94C = 39, which is 913C = 39.
Solve for C: To find C, we multiply both sides of the equation by the reciprocal of (913), which is (139): C=39×(139).
Calculate Number of Children: Calculate C: C=39×(139)=3×9=27. So there are 27 children at the movie.
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