You could choose 100 kilometers per hour. Then it would be <span>27.77778 meters per second. </span>

**Answer:**

1 Expert Answer

Let x and y be the two numbers. Then by assumptions we have x+y=30 and x-y=20. Hence, y=x-20 and by plugging this into the first equation we obtain x+x-20=30 or 2x=50 or x=25 and y=5

**Step-by-step explanation:**

So, divide 30 by 2 . That gives you 15 for x, 15 for y. Now, you have difference of six, divide by two, that equals 3.

**Answer:**

a real number is a value of a continuous quantity that can represent a distance along a line

**Step-by-step explanation:**