6. Citadel is 5 years older than
her younger sister Anadel. If
the sum of their ages is 25,
How old are they now? Let A =
be the age of Anadel A + 5 = be
the age of Citadel
A. Anadel = 10 years old. Citadel =
15 years old.
B. Anadel = 15 years old. Citadel
10 years old.
C. Anadel = 5 years old, Citadel = 20
years old.
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Answer:
A. Anadel = 10 yrs old
Citadel = 15 yrs old
Step-by-step explanation:
equation would be:
a + (a+5) = 25
a+a+5 = 25
2a + 5 = 25
2a = 25 - 5
2a = 20, then divide both side by 2
a = 10
TO CHECK, substitute lang the value of a sa equation. Then dapat both sides are equal
a + (a+5) = 25
10 + (10+5) = 25
10+15 = 25
25 = 25 therefore a=10 is correct
hope this helps