ruth is training for a half - marathon. on saturday, she ran 3 miles in 34.5 minutes. on sunday, she ran 2.5…

ruth is training for a half - marathon. on saturday, she ran 3 miles in 34.5 minutes. on sunday, she ran 2.5 miles in 28 minutes. how much faster, in minutes per mile, was her pace on sunday than on saturday? write your answer as a decimal or a whole number. minutes per mile

ruth is training for a half - marathon. on saturday, she ran 3 miles in 34.5 minutes. on sunday, she ran 2.5 miles in 28 minutes. how much faster, in minutes per mile, was her pace on sunday than on saturday? write your answer as a decimal or a whole number. minutes per mile

Answer

Explanation:

Step1: Calculate pace on Saturday

Pace is time per distance. So, for Saturday, the pace $p_{saturday}=\frac{34.5}{3}= 11.5$ minutes per mile.

Step2: Calculate pace on Sunday

For Sunday, the pace $p_{sunday}=\frac{28}{2.5}=11.2$ minutes per mile.

Step3: Find the difference in pace

The difference $\Delta p=p_{saturday}-p_{sunday}=11.5 - 11.2=0.3$ minutes per mile.

Answer:

$0.3$