On Saturday mornings, Charlotte volunteers at the hospital where her mother works. One Saturday, she answers phone calls at the information desk while the receptionist is away. Then she spends 25 minutes delivering flowers to patients' rooms. In all, Charlotte volunteers at the hospital for 45 minutes that day.

Question

Which equation can you use to find the amount of time t that Charlotte answers phone calls?
Solve this equation for t to find the amount of time that Charlotte answers phone calls.

Answer 1

To find the amount of time \( t \) that Charlotte answers phone calls, we can set up the equation based on the information given.

Let:

• \( t \) = time Charlotte spends answering phone calls (in minutes).
• 25 minutes = time Charlotte spends delivering flowers.

According to the information, the total time she volunteers at the hospital is 45 minutes. Thus, we can write the equation:

\[ t + 25 = 45 \]

To solve for \( t \), subtract 25 from both sides:

\[ t = 45 - 25 \]

\[ t = 20 \]

Therefore, the amount of time that Charlotte answers phone calls is 20 minutes.