SOLUTION: Jack is twice as old as Jill. In 2 years, Jack will be 4 times as old as Jill was 9 years ago. How old are they now?
Algebra.Com
Question 131990: Jack is twice as old as Jill. In 2 years, Jack will be 4 times as old as Jill was 9 years ago. How old are they now?
Answer by TakeATuition.com(57) (Show Source): You can put this solution on YOUR website!
SOLUTION -
Let the present age of jack be x years
and the present age of jill be y years
According to the condition
x=2y ........(i)
After 2 years jack will be (x+2)years
9 years ago jill was (y-9)years
now according to the condition
(x+2)=4(y-9)
substituting the valu of x from equation (i) we have
2y+2=4y-36
2y-4y+2=4y-36-4y
-2y+2-2=-36-2
-2y=-38
=-38/-2}}}
y=19
substituting the value of y in equation (i) we have
x=2y
x=2*19
x=38
therefore
jack present age = 38
jill present age = 19
FOR MORE HELP VISIT: www.TakeATuition.com
RELATED QUESTIONS
Jack is twice as old as Jill. In 2 years, Jack will be 4 times as old as Jill was 9... (answered by ankor@dixie-net.com)
Jack is twice as old as Jill. In 2 years, Jack will be 4 times as old as Jill was 9 years (answered by ramkikk66)
jack is twice as old as jill. in two years, jack will be 4 times as old as jill was 9... (answered by rwm)
Jack is twice as old as Jill.In 2 years, Jack will be four times as old as Jill was 9... (answered by josgarithmetic,MathLover1)
Jack is twice as old as Jill.In 2 years,jack will be 4 times as old as Jill was 9 years... (answered by checkley71)
Help me solve this?
Jack is twice as old as Jill. In 2 years Jack will be four times as... (answered by MathLover1)
two years ago, Jill was 7 times as old as Jack. Three years from now, Jill will be 4... (answered by lwsshak3)
How do I solve using a system of two equations in two variables?
Jack is twice as old... (answered by scott8148)
Help me answer this?
Jack is twice as old as Jill. Into years Jack will be four times as (answered by josmiceli,MathLover1)