Answer:
[tex]\frac{5}{12}[/tex] feet
Step-by-step explanation:
Let height of mandy be m, sophia be s, and alexis be a
"sophia is 3/4 as tall as mandy":
[tex]s=\frac{3}{4}m[/tex]
"alexis is 5/6 as tall as mandy":
[tex]a=\frac{5}{6}m[/tex]
Since mandy is 5 feet, we plug in 5 into m in both of the equations to find height of alexis and sophia.
Sophia = [tex]\frac{3}{4}(5)=\frac{15}{4}[/tex]
Alexis = [tex]\frac{5}{6}(5)=\frac{25}{6}[/tex]
Difference in height of Alexis and Sophia is [tex]\frac{25}{6}-\frac{15}{4}=\frac{5}{12}[/tex] feet