Yes it does rely on direct proportion.
A proportion is a statement that two ratios or rates are equal.
equivalent.
The quantity in unit rates refers to the amount or number being measured or compared in relation to a single unit of another quantity. It helps to determine the rate at which the original quantity is changing or occurring.
proportion
Proportion
A proportion
It is called a proportion.
It is called a proportion.
proportion
cross multiplying unit rates horizontal
Rates are a way to measure how one quantity changes in relation to another quantity. They are typically expressed as a ratio or fraction, showing the amount of change in one quantity compared to another, often over a specific unit of time or quantity. Rates are commonly used in various fields such as finance, science, and economics to analyze and compare different data sets.