
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
For the first 30 minutes of a trip, Deanna drove at a constant speed. For the next 30 minutes, she drove at a constant speed $20 \mathrm{~km} / \mathrm{h}$ faster than her original speed. If the total distance that she travelled was $100 \mathrm{~km}$, determine the speed at which she drove for the first 30 minutes.

Present the answer in LaTex format: \boxed{Your answer}
user