Answer:
140 adults.
Step-by-step explanation:
5:7 Ratio. 100 Children, so if we want the adults we want to reverse the ratio, 100 x 7/5 = 140.
140 Adults.
To check our work we can see if the fractions are the same, so divide 5/7 and 100/140 and you'll see they both have the same result.
