You can find the unit rate when given a rate by setting up a proportion of the rate equal to how many per one.
40 miles per 2 hours = 20 miles per one hour.
20 miles/hour is a unit rate. (How many per one?)
A plane can be named by a capital letter, often written in script, or by the letters naming three non-collinear points in the plane. For example, the plane in the diagram below could be named either plane ABC or plane P .
(I hope it helps somewhat)
Answer:
0.0622ns
Step-by-step explanation:
Rate, R = 6mm²/s or 6 X 10∧-8m²/s
Radius, r = 109 X 10∧-9m
Area of circular object = πr² = 22/7 X (109 X 10∧-9)²= 3.734 X 10∧-14m²
Speed = 3.734 X 10∧-14m²/(6 X 10∧-8)m²/s = 0.0622ns