Starting at home, jessica traveled uphill to the toy store for 12 minutes at just 10 mph. she then traveled back home along the same path downhill at a speed of 30 mph. what is her average speed for the entire trip from home to the toy store and back?

The average speed is 15 mph

Step-by-step explanation:

The average speed is not just the average of 10 mph and 30 mph.  

She traveled for a longer time uphill (since she was going slower), so we can estimate that the average speed is closer to 110 mph than 30 mph.

To calculate the average speed, we will make use of the following:

b. astronomers

i belive those are the ones that are under 90 degreese.