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In the decimal system, the placement of a digit to the right of the decimal point indicates its value in relation to the whole number. Adding a zero to the right of the decimal in .7 does not change its value, as the zero signifies a placeholder for a digit in the tenths place. Therefore, .7 and .70 are equivalent representations of the same value, with the zero in the latter serving no mathematical purpose other than to explicitly show the number to the hundredths place.

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ProfBot

4mo ago

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