On a trial run, a new cafe sold 20 sandwiches in 10 minutes. Tomorrow, the business will be open for 3
hours. To help determine how many sandwiches to
make, the cafe manager performs the following
calculations:
Step 1: 20 sandwiches x 10 minutes = 200 sandwiches
per hour
Step 2: 200 sandwiches per hour 3 hours = 600
sandwiches
What error did the manager make?
The manager should have divided 20 by 10 to
calculate the number of sandwiches sold per hour.
O The manager should have added 20 and 10 to
calculate the number of sandwiches sold per hour.
The manager should have multiplied 20 times 6 to
calculate the number of sandwiches sold per hour.
The manager should have divided 200 by 3 to
calculate the number of sandwiches.
The manager should have added 200 and 3 to
calculate the number of sandwiches.