Answer:
60°
Step-by-step explanation:
90° = 6x
15° = x
60° = 4x
Answer:
Step-by-step explanation:
Let
y --->Mala's age
x---> sister's age
we know that
---> equation A
so
The sum of ages of the sisters is
substitute equation A in the expression of the sum of ages
simplify
Answer: you can change the subject so that you can help people with other subjects
Step-by-step explanation: