Mathematics, 14.04.2020 17:36, fantasticratz2

The Baldwin family walked four over five of a mile in four over nine of an hour. What is their unit rate in miles per hour?

four-ninths over four-fifths equals four over nine mile per hour
four-fifths over four-ninths equals one and four-fifths miles per hour
four-ninths over four-fifths equals one and four-fifths miles per hour
four-fifths over four-ninths equals four over nine mile per hour

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The Baldwin family walked four over five of a mile in four over nine of an hour. What is their unit...