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? (5 points)

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

4/5 over 4/9 = 1 4/5

Explanation:

(Took test)

Explanation:

4/5 mile in 4/9 of an hour

0.8 mile in 0.444444444 of an hour

Unit rate: 1.8 miles per hour

0.8 = 8/10 = 4/5

1.8 = 1 4/5

Answer 2

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

Explanation:

4/5 / 4/9

4/5 times 9/4 = 36/20

36/20 simplified = 9/5

9/5 = 1 and 4/5