Best Answer

Equation 1. f = 13s

Equation 2. f + 9 = 4(s + 9) ie f + 9 = 4s + 36 ie f = 4s + 27

Substitute for f: 13s = 4s + 27

Subtract 4s from each side: 9s = 27

Divide each side by 9: s = 3 so f = 39 ( in 9 years s = 12, f = 48)

Q: A father is thirteen times older than his son in 9 years he will be 4 times as old what age are they now?

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The father is always 28 years older than his son so the equation can be written: (1) father = son + 28 at all times after birth at some point father is three times older than son so: (2) father = 3son So we can combine (1) and (2) equations as: 3son = son + 28 2son = 28 son = 14 so when the son is 14 the father is 28 years older which is 42 and 3 times older than 14.

a father is 30 times older than hi son.however after 18 years he will only be thrice as old as his sons age . find the present age of father

To get the answer, all you need to do is multiply Helen's age by two and then add four on the end. (13 x 2) + 4 = 30 Helen's father is thirty years old.

It will take 20 years for Mr Walker to be 3 times older than his son. This is because Mr Walker is currently 20 years older than his son (22 - 2 = 20), and when his son is x years old, Mr Walker will be 3 times older than him (x = 20).

He will never reach that exact age.In four years' time they will be 26 and 6 so that Mr Walker will be 4.33... times his son's age, or 3.33... times older than his son. In five years' time they will be 27 and 7 so that Mr Walker will be 3.86... times his son's age, or 2.86... times older than his son.

Related questions

no!

The father is always 28 years older than his son so the equation can be written: (1) father = son + 28 at all times after birth at some point father is three times older than son so: (2) father = 3son So we can combine (1) and (2) equations as: 3son = son + 28 2son = 28 son = 14 so when the son is 14 the father is 28 years older which is 42 and 3 times older than 14.

110 right?

It is a possibility.

a father is 30 times older than hi son.however after 18 years he will only be thrice as old as his sons age . find the present age of father

a father is 30 years older than his son.in 12 years,the men will be three times as old as his son.find their present ages.

"I am thirteen years old."

4+(2X13)

not likely until you're a bit older

He has two older sisters, Nicola (Older by four years) and Ruth (Older by two years). And his parents are Geoff (his father) and Karen (his mother).

36.... lol :P or 20

Thirteen Years was created in 1994.