### What is a rate?

A **rate** is a comparison between two units. Common examples are ‘kilometres/hours’, ‘cents/grams’, ‘pay rate/hours worked’ and ‘words/minutes’. The following post will have videos that explain the converting rates dot point in HSC Standard Math including how to convert rates, converting using the **unitary method** and further conversions involving Speed.

### Converting Rates

The following video introduces rate conversions and an example.

### How to convert rates using the ‘unitary method’

The following video explains how to use the **unitary method **to convert rates.

### Conversions involving Speed

The following video explains how to convert speed using the SDT formula.

Please note: This sources is American and uses miles however applies to kilometres as well! This is really helpful if you need further help in understanding how to convert speed.