Bernard was the 37th caller to the radio station 103.7 The Party and won tickets to see his favorite band, Soulful Eyes! To get to the concert, he rides the green line train for four stops. Then he rides the red line train for 12 minutes. In all, Bernard spends 42 minutes on the train to get to the concert.
Which equation can you use to find the amount of time t Bernard rides the green line train?

We know that Bernard spends a total of 42 minutes on the train. He rides the red line for 12 minutes, and we are looking for how long he rides the green line. Let's define **t** as the amount of time Bernard spends on the green line.

The equation to find **t** is:

\[
t + 12 = 42
\]

### Explanation:
- **t** is the time spent on the green line.
- 12 is the time spent on the red line.
- 42 is the total time spent on the train.

To solve for **t**, subtract 12 from both sides of the equation:

\[
t = 42 - 12
\]
\[
t = 30
\]

Thus, Bernard rides the green line for 30 minutes.

### Would you like more details or have any further questions?

### Related questions:
1. If Bernard had spent 5 more minutes on the red line, what would the new equation look like?
2. How many total stops did Bernard make on the green line if each stop takes 6 minutes?
3. What fraction of the total time was spent on the green line?
4. If Bernard's total commute was increased by 10%, how much time would he spend on the train?
5. If Bernard missed the first green line train and waited 8 minutes, how long would his entire commute have taken?

### Tip:
When solving problems with total time or distance, break them down into parts to create equations that represent each segment of the journey.

Bernard was the 37th caller to the radio station 103.7 The Party and won tickets to see his favorite band, Soulful Eyes! To get to the concert, he rides the green line train for four stops. Then he rides the red line train for 12 minutes. In all, Bernard spends 42 minutes on the train to get to the concert. Which equation can you use to find the amount of time t Bernard rides the green line train?

Learn how to solve for the time Bernard spends on the green line train using a simple linear equation. Bernard spends 42 minutes on the train in total, and 12 minutes on the red line. This problem helps students practice algebraic concepts, such as setting up and solving linear equations. Suitable for Grades 6-8.

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