Question

On Saturday mornings, Darrell volunteers at the hospital where his mother works. One Saturday, he answers phone calls at the information desk while the receptionist is away. Then he spends 20 minutes delivering flowers to patients' rooms. In all, Darrell volunteers at the hospital for 60 minutes that day.
Which equation can you use to find the amount of time t that Darrell answers phone calls?
Solve this equation for t to find the amount of time that Darrell answers phone calls.

Answers

GPT-4o mini
To find the amount of time \( t \) that Darrell answers phone calls, we need to set up an equation based on the total time he spends volunteering.

We know that the total time he volunteers is 60 minutes, and he spends 20 minutes delivering flowers to patients. Therefore, the time he spends answering phone calls can be expressed as:

\[
t + 20 = 60
\]

where \( t \) is the time he spends answering phone calls. Now, we can solve the equation for \( t \).

1. Subtract 20 from both sides of the equation:

\[
t = 60 - 20
\]

2. Simplify the right side:

\[
t = 40
\]

Thus, the amount of time \( t \) that Darrell answers phone calls is **40 minutes**.