Suppose that 6 years ago, Alice was four times as old as Betty. In 4 years from now, Alice will only be three times as old as Be

Question

blondinia [14]

3 years ago

9

Suppose that 6 years ago, Alice was four times as old as Betty. In 4 years from now, Alice will only be three times as old as Be

tty. How old is Betty today.

Mathematics

1 answer:

N76 [4] · Answer 1 · 2022-07-25T20:09:14+03:00

N76 [4]3 years ago

5 0

4b=a then plus 10 to see if the age holds true to 3b=a in ten years. Then since the question is how old is she today? You must either add 6 to young age (of20) or minus 4 from the older (of 30).
So Betty would be 26 today.