You and two other friends took turns driving during the trip. You each drove for the following amounts of time: 56 of an hour, 2 18 hours, and 3 12 hours. How long did you all spend driving?(2 points) Responses 5 12 hours 5 12 hours 5 1124 hours 5 1124 hours 6 1124 hours 6 1124 hours 6 14 hours

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
28 days ago

To find the total time spent driving by you and your two friends, we need to add up the individual driving times.

1. Convert the given times to a consistent format (hours):

- You drove: \( 56 \) minutes = \( \frac{56}{60} \) hours = \( \frac{14}{15} \) hours.
- Friend 1 drove: \( 2 \frac{1}{8} \) hours = \( 2 + \frac{1}{8} = \frac{16}{8} + \frac{1}{8} = \frac{17}{8} \) hours.
- Friend 2 drove: \( 3 \frac{1}{2} \) hours = \( 3 + \frac{1}{2} = \frac{6}{2} + \frac{1}{2} = \frac{7}{2} \) hours.

2. Now, let's add these times together:

\[
\text{Total Time} = \frac{14}{15} + \frac{17}{8} + \frac{7}{2}
\]

First, convert each term to a common denominator. The least common multiple of 15, 8, and 2 is 120.

- Convert \( \frac{14}{15} \):
\[
\frac{14}{15} \times \frac{8}{8} = \frac{112}{120}
\]

- Convert \( \frac{17}{8} \):
\[
\frac{17}{8} \times \frac{15}{15} = \frac{255}{120}
\]

- Convert \( \frac{7}{2} \):
\[
\frac{7}{2} \times \frac{60}{60} = \frac{420}{120}
\]

3. Now add these fractions:
\[
\frac{112}{120} + \frac{255}{120} + \frac{420}{120} = \frac{112 + 255 + 420}{120} = \frac{787}{120}
\]

4. Convert \(\frac{787}{120}\) into a mixed number:
- \( 787 รท 120 = 6\) remainder \(67\)
- Therefore, \( \frac{787}{120} = 6 \frac{67}{120}\).

5. To express \(\frac{67}{120}\) as a fraction of an hour (for clarity in time):
\[
67 \text{ minutes} \text{ is approximately } 1 \text{ hour and } 7 \text{ minutes}.
\]

So, the total driving time is \( 6 \frac{67}{120}\) hours or approximately \( 6.\) hours and \( 7 \text{minutes}.\)

Since that does not match the provided options exactly, the best approximate total from the options given would be:

**6 1/4 hours.**