SOLUTION: Andrew is now one quarter of his father's age. In 4 years he wil be one third of his father's age. How old are Andrew and his father now?
I need help on setting up the equation an
Algebra.Com
Question 773211: Andrew is now one quarter of his father's age. In 4 years he wil be one third of his father's age. How old are Andrew and his father now?
I need help on setting up the equation and then solving.
Let A=Andrew's age now.
Let F=The fathers age now.
I tried A=1/4*F.
Then the second equation I wrote down is A+4=1/3*F+4.
I dont't know what to do next.
Answer by John10(297) (Show Source): You can put this solution on YOUR website!
Hint: Substitute the first equation into the second equation for A:
(1/4)F + 4 = (1/3)(F + 4)
(1/4)F + 4 = (1/3)(F) + 4/3
(1/4)F - (1/3)F = -4 + 4/3
(-1/12)F = -8/3
F/12 = 8/3
F = (8/3)(12) = 32
A = (1/4)F = 32/4 = 8
Andrew is 8 years of age
Father is 32 years of age
Hope it helps!
John10
RELATED QUESTIONS
jake is now one-quarter of his father age and in 7 years time his age he will be... (answered by ankor@dixie-net.com)
Bob is one third the age of his father. In 12 years he will be half the age of his... (answered by jorel1380)
Bob is one third the age of his father. In 12 years he will be half the age of his... (answered by ankor@dixie-net.com)
Bob is one third the age of his father. In 12 years he will be half the age of his... (answered by stanbon)
Bob is one third the age of his father. In 12 years he will be half the age of his... (answered by Mathpassionate)
Ed, his father, and his grandfather häve an average age of 53. One-half of his... (answered by Boreal)
if Michael is 9 years old and his father is 32, in how many years will Michael’s age be... (answered by ankor@dixie-net.com)
A father is 4 times his son’s age and in 30 years, son’s age will be half of his father’s (answered by ankor@dixie-net.com)
Someone please help me!!!
Three generations. Edwin, his father, and his grandfather... (answered by josgarithmetic,greenestamps)