Final answer:
The second bread machine is faster, producing 90 loaves per hour versus the first machine's 40 loaves per hour.
Step-by-step explanation:
To compare which bread machine makes bread faster, we need to calculate the rate of production for each machine. The first machine bakes 20 loaves of bread in 0.5 hours (30 minutes), and the second machine bakes 30 loaves of bread in 0.333 hours (20 minutes, since 1/3 of an hour is 20 minutes).
To find the rates, we divide the number of loaves by the time in hours. For the first machine:
Rate = Number of loaves ÷ Time
Rate = 20 loaves ÷ 0.5 hours
= 40 loaves per hour
For the second machine:
Rate = 30 loaves ÷ 0.333 hours
= 90 loaves per hour
Therefore, the second machine makes bread faster, producing 90 loaves per hour compared to the first machine's 40 loaves per hour.