SOLUTION: Thank you in advance!
Jill is 8 years older than her brother Curt. Four years from now, Jill will be twice as old as Curt. How old is each at the present time?
Algebra ->
Customizable Word Problem Solvers
-> Age
-> SOLUTION: Thank you in advance!
Jill is 8 years older than her brother Curt. Four years from now, Jill will be twice as old as Curt. How old is each at the present time?
Log On
You can put this solution on YOUR website! Jill is 8 years older than her brother Curt. Four years from now, Jill will be twice as old as Curt. How old is each at the present time?
:
J = Jill's present age; C = Curt's present age
:
The equation for this statement: "Jill is 8 years older than her brother Curt."
J = (C + 8)
:
"Four years from now, Jill will be twice as old as Curt."
(J + 4) = 2(C + 4)
J + 4 = 2C + 8
:
Substitute (C + 8) for J
(C+8) + 4 = 2C + 8
C + 12 = 2C + 8
C - 2C = 8 - 12
-C = -4
C = 4 yrs old now
:
That make Jill; 12 yrs old now
:
In 4 years: Jill will be 16, twice as old as Curt, who will be 8
