Answer :
Answer:
Anna Ellie's age is (59.5) and Elsa's is 59.5+1 =60.5.
Step-by-step explanation:
Let x: age of Anna Ellie. Since Elsa's and Anna's age are consecutive numbers, Elsa's age can be expressed as [text]x + 1[\tex].
The sum of their ages expressed in equation form:
[tex]x + x+1=120[/tex]
Remember that [tex]x + x = 2x[/tex]. Also take one from each side of the equation:
[tex]2x+1-1=120-1[/tex]
[tex]2x=119[/tex]
Dividing by 2 on both sides:
[tex]x=\frac{119}{2}=59.5[/tex]
Which is Anna Ellie's age (59.5) and Elsa's is 59.5+1 =60.5.