John’s age in 5 years time will be the same as Jack’s age is now. In two years, Jack will be twice as old as John. How old are they now?

john 2 1/2 years old jack is 7

in 5 years he will be 7 like jack is now

in two years jack is 9 and john is 4.5

Step-by-step explanation:

You could also say john is 3 and jack 8 in 5 years he is 8 like jack

and in 2 years he is 5 and jack is 10 which is twice the age.

it doesn't work for other ages.

where are the images of the functions i can only see the question you typed.

step-by-step explanation:

y=-2.5x+12.5

step-by-step explanation:

5y=2x+10

y=0.4x+2

slope=-2.5

5=-2.5*3+b

b=12.5