Answer: Cyndy: speed = 4mph;
Taylin:[tex]\frac{distance}{time} = \frac{4}{\frac{1}{2} }[/tex], speed = 8mph;
Judy: [tex]\frac{distance}{time} = \frac{5\frac{1}{4} }{\frac{3}{4} }[/tex], speed=7 mph;
Step-by-step explanation: To complete the table, it has to be written the distance / time and the speed (unit rate) of each girl.
Cyndy:
For her, the first column is already given:
[tex]\frac{distance}{time}[/tex] = [tex]\frac{6}{1\frac{1}{2} }[/tex]
Speed is the distance traveled divided by how much time it was needed to walk the distance:
speed = [tex]\frac{6}{\frac{3}{2} }[/tex]
speed = 6.[tex]\frac{2}{3}[/tex]
speed = 4 miles per hour (mph)
Taylin:
[tex]\frac{distance}{time} = \frac{4}{\frac{1}{2} }[/tex]
speed = 4.2
speed = 8mph
Judy:
[tex]\frac{distance}{time} = \frac{5\frac{1}{4} }{\frac{3}{4} }[/tex]
speed = [tex]\frac{5\frac{1}{4} }{\frac{3}{4} }[/tex]
speed = [tex]\frac{\frac{21}{4} }{\frac{3}{4} }[/tex]
speed = [tex]\frac{21}{4} . \frac{4}{3}[/tex]
speed = 7mph
