Question

Maddie spent 18 minutes on the phone while routing 9 phone calls. If she routes 10 phone calls, how much time will Maddie have spent on the phone in total? Assume the relationship is directly proportional.

Answer 1

Maddie will have spent a total of 20 minutes on the phone when she routes 10 phone calls, with each call taking an average of 2 minutes.

Step-by-step explanation:

The question asks how much time Maddie will have spent on the phone if she routes 10 phone calls, given that she spent 18 minutes on 9 phone calls. We assume a direct proportionality between the number of phone calls and the time spent. To solve this, first, we find the time Maddie spends on each call by dividing the total time by the number of calls. Then, we multiply this average call time by the number of calls we want to find the time for, which is 10 in this case.

• Time per call = Total time spent / Number of calls
• Total new time = Time per call × Number of new calls

So for 9 calls, Maddie spends 18 minutes: Time per call = 18 minutes / 9 calls = 2 minutes per call. For 10 phone calls: Total new time = 2 minutes per call × 10 calls = 20 minutes.