Answer:
Step-by-step explanation:
Answer:
879.6
Step-by-step explanation:
I had a similar question that I solved which helped me here.
Answer: 10^3
character limit
Answer:
84 years
Step-by-step explanation:
Given :
At present :
Let :
daughter's age = x
Woman's age = 2x
21 years ago :
Woman's age = 3 times daughter's age
2x - 21 = 3(x - 21)
2x - 21 = 3x - 63
-21 + 63 = 3x - 2x
42 = x
Daughter's age = 42
Woman's age = 2x = 84
Hence, woman's present age is 42 years
B.3(n-5)=21
n-5=7
n=12
C.n=2
D.x=0
Ex=0