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Mathematics 17 Online
jathey:

The Ruiz family is exchanging euros for US dollars. The exchange rate is 1 euro equals 1.35261 USD. Since the Ruiz family knows that USD are stated to the nearest hundredth of a dollar, they used the conversion ratio 1.35 USD over 1 Euro. Will this give the Ruiz family the correct exchange? Explain.

Vocaloid:

Well, how about picking a few currency values to try out, and applying 1. the unrounded conversion factor and 2. the rounded conversion factor, to see whether it makes any diff. to the final result

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