Question

The number of days, d, required to complete a job varies inversely as the number of workers, w, on the job.

If it takes 9 days for 8 workers to complete a job, then how many workers would it take to do the job in 18 days?

Answer 1

4

Explanation:

this one is an easy relationship- if you have double the time (18 vs9), then you need half the workers (8/2)