Answer :
Final answer:
To convert between metric and imperial units, you need to use appropriate conversion factors. Metric units are widely used due to their simplicity and consistency in measuring.
Explanation:
a) To convert metres to centimetres, you need to multiply the value in metres by 100. So, to find out how many centimetres there are in 57 metres, you would multiply 57 by 100. The answer is 5700 centimetres.
b) To convert yards to feet, you need to multiply the value in yards by 3. So, to find out how many feet there are in 57 yards, you would multiply 57 by 3. The answer is 171 feet.
c) Metric units are used by over 90% of countries in the world because the metric system is based on powers of 10 and offers a more straightforward and consistent way of measuring. This makes it easier for people from different countries to communicate and understand measurements without having to convert between different units.
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