It is a measurement.
Measurement
The Unit Rate Is The Quantity Of ONE Thing
the unit of mesurement
An even number is always some quantity of 'twos' (2's), and any quantity of twos is an even number. The first even number is a quantity of twos, and the second even number is another quantity of twos. When you add the first quantity of twos to the second quantity of twos, you get a new quantity of twos. Since the new quantity of twos is a quantity of twos, it's an even number.
a unit rate describes how many units of the first type of quantity
A scalar quantity defines only magnitude, while a vector quantity defines both a magnitude and direction.
A pure number.
If a quantity is "dimensionless", that means it has no units, and it's just a number.
Measurement
The difference between quantity and unit in "16 pounds" is the unit is pounds and the quantity is 16.
It is a ratio where the second number is one or one of the quantity
Efficiency is a dimensionless quantity, i.e. it's just a number, without any unit.
A unit rate is a rate in which the second number (usually written as the denominator) is 1, or 1 of a quantity
It is called the unit rate and gives the number of the first unit for each one in the second.
A standard use for a measurement of a physical quantity is called the unit of that physical quantity
a vector
It is a unit rate.A unit rate.