Question

Kelly runs a distance of 100 metres in a time of 10.52 seconds.
The distance of 100 metres was measured to the nearest metre.
The time of 10.52 seconds was measured to the nearest hundredth of a second.
Write down the upper bound for the distance of 100 metres.

Answer 1

Answer:

Upper bound for distance = 100.49. This is the highest number that you can round up to get 10.52.

Lower bound for time = 10.515 seconds. This is the lowest number that you can round up to get 10.52.

Upper bound for average speed = Upper bound for distance divided by upper bound for time.

100.49/10.5249 = 9.548 seconds.

Lower bound for average speed = Lower bound for distance divided by lower bound for time.

99.5 / 10.515 = 9.463 seconds.

Step-by-step explanation:

Hope this helps you out.

Answer 2

The upper bound for the distance of 100 metres is 100.4 meters.

What is meant by rounding off?

Rounding off means a number is made simpler by keeping its value intact but closer to the next number.

Given:

Kelly runs a distance of 100 metres in a time of 10.52 seconds.

The upper bound represents the highest number, to which round off can be done to the nearest unit.

We have distance of 100 metres

So, the upper bound for the distance is 100.4 meters.

Hence, the upper bound for the distance is 100.4 meters.

Learn more about rounding off here:

https://brainly.com/question/13391706

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