Answer:
let the daughter age be x
let mother age be 3x
Step-by-step explanation:
x+3x= 80
4x = 80
x= 80\4
x=20
daughter age is 20
mather age= 80 -20
= 60
daughter age 20
mother age 60
The correct value is 12.
your photo dose not work
but you would half to email it to me then i can help you if you want to do that
30 cards