Q:

Brenna has already spent 69 minutes on the phone, and she expects to spend 1 moreminute with every phone call she routes. In all, how many phone calls does Brenna have toroute to spend a total of 88 minutes on the phone?

Accepted Solution

A:
Answer:Brenna has to  route  19 phone calls to spend a total of 88 minutes on the phoneStep-by-step explanation:The time Brenna has already spent on phone = 69 minutes.Total time she is to spend on the phone = 88  minutesSo, the minutes left yet =  88 minutes-   69 minutes=  19 minutesNow, for each calls she routes, she spends 1 minute extra.So, in 19 minutes duration she can route EXACTLY 19 calls. Hence, Brenna have to  route  19 phone calls to spend a total of 88 minutes on the phone.