Final answer:
Alyssa would go 30 miles if she drove for one hour at the same rate she drove 10 miles in 20 minutes.
Step-by-step explanation:
To find out how far Alyssa would go if she drove for one hour at the same rate, we need to determine the distance she covers in 20 minutes and then multiply it by three. We know that she drives 10 miles in 20 minutes, so her rate is 10 miles/20 minutes, which simplifies to 0.5 mile/minute. To find out how far she would go in one hour, we multiply her rate by 60 minutes (since there are 60 minutes in an hour). So the distance she would cover in one hour is 0.5 mile/minute x 60 minutes = 30 miles.