Assuming Ms. Larson was travelling at a constant speed in that half hour, her speed would have been 44 miles per hour.
In order to find the speed of something, use the formula:
= Distance / Time
The distance was:
= First distance from home - Second distance from home
= 120 - 98
= 22 miles
The time was half an hour so will be presented as:
= 0.5 hours
The speed is therefore:
= 22 / 0.5
= 44 miles per hour
In conclusion, Ms. Larson is going at 44 miles per hour.
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