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
Answer:
0
Step-by-step explanation:
y=3 would be nothing more than a horizontal line through y=3
34.4%
to turn a decimal into a percent you move the decimal two places to the right
if you needed to turn a percent into a decimal, you'd move the decimal two places to the left
10 - (y - 6) - y
10 - y - 6 - y
10 - 6 - y - y
4 -2y
1 × 10 ^7 + 6 × 10 ^6 + 2 × 10 ^5 + 0 × 10 ^4 + 4 × 10 ^3 + 7 × 10 ^2
+ 9 × 10 ^1 + 0 × 10 ^0