Answer :
Answer:
The correct order from least time to greatest time is: Andy, Beth, Cindy.
Step-by-step explanation:
Consider the provided information,
Andy walked [tex]2\frac{3}{4}[/tex] mi at a constant speed of [tex]2 \frac{1}{2}[/tex] mi/h.
As we know: [tex]Time= \frac{Distance}{Speed}[/tex]
[tex]Time= \frac{2\frac{3}{4}}{2 \frac{1}{2}}[/tex]
[tex]Time= \frac{\frac{11}{4}}{\frac{5}{2}}[/tex]
[tex]Time= \frac{11}{10}[/tex]
Therefore, Andy takes 1.1 hours.
Beth walked [tex]1\frac{1}{2}[/tex] mi at a constant speed of [tex]1\frac{1}{8}[/tex] mi/h .
[tex]Time= \frac{1\frac{1}{2}}{1 \frac{1}{8}}[/tex]
[tex]Time= \frac{\frac{3}{2}}{\frac{9}{8}}[/tex]
[tex]Time= \frac{4}{3}[/tex]
Therefore, Beth takes 1.33 hours.
Cindy walked for 1 h and 24 min at a constant speed of [tex]1\frac{1}{4}[/tex] mi/h.
[tex]1\: hour \: 24 \: minutes \: = 1+ \frac{24}{60}hours = 1.4\ hours[/tex]
Therefore Cindy takes 1.4 hours.
Andy spent least time i.e 1.1 hours and Cindy spent greatest time i.e 1.4 hours.
The correct order from least time to greatest time is: Andy, Beth, Cindy