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The ratio of the number of adults to the number of students at the prom has to be 1:10. There are 477 more students than adults. How many adults are at the prom?

1/2x+477=10/2x?

if there are x adults, there are 10x students.

10x = x+477

Not sure where the 2x came from, or why the divisions.

At the 6th grade school dance, there are 132 boys, 89 girls, and 14 adults.

In the cafeterÃ­a , 100 milk cartons were put out for breakfast. At the end of breakfast, 27 remained.

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