Question

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

Answer 1

Answer:

4/5 / 4/9 = 1 and 4/5 mph or B

Step-by-step explanation:

4/5 / 4/9

4/5 times 9/4 = 36/20

36/20 simplified =  9/5

9/5 = 1 and 4/5