john has x years his sister has 2 years more if the sum of their age is 10 what is the age of her sister
1 answer:
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Answer:
x = 10
Step-by-step explanation:
First, distribute:
Next, subtract from both sides:
(multiply by 2 to get common denominator,
)
Next, subtract from both sides:
(multiply by 2 to get common denominator,
)
⇒
Next, multiply both sides by 10:
FInally, divide both sides by -1:
x = 10
Answer:
sin (×+y)/sinx cosy =1+ cotx tany
from trig ratio Sin [x +y] = sinx Cosy + cosx siny
Sinx cosy + cosox siny./Sinx cosy
then check the attachments for further information
