Final answer:
To find out what percent of 80 is 42, set up a proportion and solve for x. 42 is approximately 52.5% of 80.
Step-by-step explanation:
To find out what percent of 80 is 42, we can set up a proportion. Let's call the unknown percentage as x. The proportion can be set up as (42/80) = (x/100). Cross multiplying, we get 80x = 42 * 100 . Solving for x, we find x = 52.5. So, 42 is approximately 52.5% of 80.
Learn more about Proportions in Mathematics