If twice the son's age in years is added to the father's age, the sum is 70. But twice the father's age is added to the son's age, the sum is 95, find the present ages of the father and his son.

40; 15

Step-by-step explanation:

father=f

son=s

2s+f=70

2f+s=95

f=70-2s

2(70-2s)+s=95

140-4s+s=95

140-3s=95

-3s=-45

s=15

2(15)+f=70

30+f=70

f=40

location: point 0

step-by-step explanation:

well, -8 to 10 on a number line is 18 spaces.

1/9 of 18 is 2.

so, 4/9 of 18 must be 8.

8 spaces from -8 (a) is 0.

so, 4/9 of the way from -8 to 10 is 0!

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong