Keshia rides her bike 10 miles per hour at this rate how many more minutes will it take her to ride 30 miles than 25 miles

5.5 hrs should be correct 10+10+10 then 10 + 10+5

1. If Keisha is riding at a speed of 10 miles per hours, she is riding 10 miles in 60 minutes.

2. If this speed stays constant, it will take Keisha 3 hours (180 minutes) to ride 30 miles and 2.5 hours (150 minutes) to ride 25 miles.
 
3. 180 minutes - 150 minutes = 30 minutes longer.