Question

Class Kk went to the local shelter. They make the same number of sandwiches every minute. In 5 minutes, the class made 20 sandwiches. how long does it take to make 1 sandwuches?

Answer 1

To find the time to make one sandwich, divide the total sandwiches (20) by the minutes taken (5) to find the rate of 4 sandwiches per minute. Then, take the reciprocal to find that it takes 0.25 minutes, which is 15 seconds, to make one sandwich.

Step-by-step explanation:

The student asks how long it takes to make one sandwich if Class Kk can make 20 sandwiches in 5 minutes. To find the answer, one would use the rate of sandwich making to determine the time taken for one sandwich. First, calculate the rate per minute by dividing the total sandwiches made by the total minutes. Then, find the time for one sandwich by taking the reciprocal of the rate per minute.

Step by Step Solution:

1. Calculate the rate per minute: 20 sandwiches ÷ 5 minutes = 4 sandwiches per minute.
2. The time to make one sandwich: 1 sandwich ÷ 4 sandwiches per minute = 0.25 minutes.
3. Since there are 60 seconds in one minute, multiply 0.25 minutes by 60 to find the time in seconds: 0.25 minutes x 60 seconds/minute = 15 seconds.

Therefore, it takes 15 seconds to make one sandwich.