amy gets 1 hour for lunch at her job. Today she used 1/4 hour to eat and 2/5 hour to run an errand. She spent the rest of her lunch writing a letter. How many minutes did Amy spend writing a letter? Please show me how to get the answer..Thanks.
1/4 * 60 = 15 minutes
2/5 * 60 = 24 minutes
15 + 24 = 39 minutes
60 - 39 = ?
To find the number of minutes Amy spent writing a letter, we first need to calculate the total time she spent on her lunch break.
Given that Amy gets 1 hour for lunch, which consists of 60 minutes, we will subtract the time she used to eat and run errands from the total lunch break time.
Amy used 1/4 hour to eat. To convert 1/4 hour to minutes, we multiply it by 60:
1/4 hour * 60 minutes/hour = 15 minutes
Amy also used 2/5 hour to run an errand. To convert 2/5 hour to minutes, we multiply it by 60:
2/5 hour * 60 minutes/hour = 24 minutes
So, the time Amy used for eating and running errands is 15 minutes + 24 minutes = 39 minutes.
Now, to find out how many minutes Amy spent writing a letter, we subtract the time used for eating and running errands from the total lunch break time:
60 minutes (total lunch break time) - 39 minutes (time used for eating and running errands) = 21 minutes.
Therefore, Amy spent 21 minutes writing a letter during her lunch break.