At an amusement park, 60% of the people were adults, and the rest were children. There were 720 adults. How many people were at the amusement park IN ALL?

Answer: There were 1200 people at the amusement park.

Step-by-step explanation:

Let x represent the total number of people in the amusement park.

At the amusement park, 60% of the people were adults, and the rest were children. It means that the number of people at the park that were adults would be

60/100 * x = 0.6 * x = 0.6x

There were 720 adults. It means that

0.6x = 720

Dividing the left hand side and the right hand side of the equation by 0.6, it becomes

0.6x/0.6 = 720/0.6

x = 1200