Answer:
son's present age = 30
father's present age=60
Step-by-step explanation:
his son's present age = x years
his father's present age = 2x years
before 20 years his son's age=(x-20) years
before 20 years father's age=(2x-20) years4(x-20)=(2x-20)
4x-80=2x-20
4x-2x=80-20
2x=60
x=30
60 miles to km would be 0.06 kilometer.
2, 4, 5
O= 90 because it is a right angle, 360 degrees (which is the whole circle) minus (50+90), equals 220.
The difference of z and y must be 2x.
