Steve decreased the number of miles he ran from 25 to 18 . By what percent did the number of miles decrease

Percentage decrease = 28%

Step-by-step explanation:

Original distance = 25 miles

New distance = 18 Miles

Change in distance = 25 - 18

= 7 miles

Percentage decrease = change in distance / original distance × 100

= 7/25 × 100

= 0.28 × 100

= 28%

Percentage decrease = 28%

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.