what is the difference bewteen a quantity and a number?

a bathroom scale is 20kg mass, and a 50 poud mass
how could you find a unitart rate to convert from pounds to kilograms?

thanks

A quantity of something will have a number plus a unit. A pure number has no unit.

I have no idea what a unitart rate is but there are 2.2 lbs in a kg.

unitary*

thanks

A quantity refers to the property or attribute that can be measured or expressed in specific units. Examples of quantities include mass, length, volume, or time. On the other hand, a number is a mathematical value used to represent a quantity. Numbers can be whole numbers, fractions, decimals, or even irrational numbers.

In the given scenario, the bathroom scale's mass is described in both kilograms and pounds. Kilograms and pounds are different units for measuring the quantity of mass. To find a unitary rate to convert from pounds to kilograms, you would need the conversion factor between the two units.

The conversion factor between pounds and kilograms is 0.4536. This means that 1 pound is approximately equal to 0.4536 kilograms. To convert a mass in pounds to kilograms, you need to multiply the value in pounds by the conversion factor.

For example, if the mass on the bathroom scale is 50 pounds, you can convert it to kilograms using the formula:

50 pounds * 0.4536 kilograms/pound = 22.68 kilograms

So, a mass of 50 pounds is approximately equivalent to 22.68 kilograms.