Final answer:
Kendrick spends 3 minutes per phone call. Hence, for 10 phone calls, he will spend a total of 30 minutes.
Step-by-step explanation:
To answer the question of how much time Kendrick will spend on the phone if he routes 10 phone calls, we need to calculate the unit rate of time spent per phone call from the information given.
Kendrick spent 15 minutes routing 5 phone calls. To find the time spent per one phone call, we divide the total time by the number of calls:
15 minutes ÷ 5 calls = 3 minutes per call.
Now that we know Kendrick spends 3 minutes per call, we can calculate the total time for 10 calls:
3 minutes per call × 10 calls = 30 minutes.
Therefore, Kendrick will have spent a total of 30 minutes on the phone if he routes 10 phone calls.