a sprinter runs 100 meters in 11.5 seconds.What is the runners average running rate in meters per second?Round to the nearest tenth.
100 / 11.5 = 8.69 = 8.7 meters per second
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To find the runner's average running rate in meters per second, divide the distance covered (100 meters) by the time taken (11.5 seconds).
The formula to calculate average speed is:
Average Speed = Distance/Time
In this case, the distance is 100 meters and the time is 11.5 seconds.
Substituting these values into the formula:
Average Speed = 100 meters / 11.5 seconds
Calculating this gives us the average running rate:
Average Speed = 8.7 meters per second
Rounding to the nearest tenth, the runner's average running rate is 8.7 meters per second.