SOLUTION: two years ago, the age of david's father id thrice of her age. If david's father is x years old this year, what is the age of david, in term of x, after five years.
my answer..
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Question 1093630: two years ago, the age of david's father id thrice of her age. If david's father is x years old this year, what is the age of david, in term of x, after five years.
my answer..
davids farthers age is x
david age is x
-
3
solutions = x
- + 2 + 5
3
= x 7
– + –
3 3
correct me if I'm wrong..
thanks teacher
Found 2 solutions by stanbon, greenestamps:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
two years ago, the age of david's father id thrice of her age. If david's father is x years old this year, what is the age of david, in term of x, after five years.
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Equation:
f-2 = 2(d-2)
f-2 = 2d-4
2d = f+2
d = (1/2)f+1
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After 5 years David is d+5::
d+5 = (1/2)f+6
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Cheers,
Stan H.
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Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!
I think maybe the work you tried to show got reformatted; as I see it, it is impossible to follow....
After getting past the bad grammar in the statement of the problem, I think what we have is....
(1) x is the current age of David's father
(2) then x-2 would be the father's age two years ago
(3) since two years ago the father was three times as old as David, David's age two years ago was (x-2)/3
(4) five years from now is seven years later than 2 years ago, so David's age five years from now will be (x-2)/3 + 7
In response to your message about my response...
The answer in the book is
, not
The book answer is the same as mine:
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