Answer:Margie spent 60% of the total time on her science homework.
Step-by-step explanation:
Margie did math homework for 25 minutes science homework for 60 minutes. Total time spent on math and science homework is 60 + 25 = 85 minutes.
She took a break for 15 minutes. Total time spent on homework and break is
85 + 15 = 100 minutes
The percentage to represent the portion of time that Margie spent on science homework would be
60/100 × 100 = 60%
