Question

How are computers 35 years ago and how are they presently and how are they going to be in the next 35 years

Answer 1

Answer:

Jason = 20yrs.old

Mandy = 15yrs.old

Explanation:

Let

J = Jason's age

M = Mandy's age

J+M=35 ..... eq. 1

J−10=2(M−10) ..... eq. 2

From eq. 1

J=35−M

Substitute this in eq. 2.

(35−M)−10=2(M−10)

35−10−M=2M−20

35−10+20=2M+M

45=3M

453=3M3

15=M

J=35−M

J=35−15

J=20