Pre-Algebra | Ratios and Proportions + exemples + QUIZ

Rates, Ratios, and Proportions

The content

Rates, Ratios, and Proportions

Standards Essential Question

How can you use units to understand problems and guide the solution of proportions?

Objectives Write and use ratios, rates, and unit rates.

Write and solve proportions.

Vocabulary ratio proportion rate cross products scale scale drawing

unit rate scale model

conversion dimensional factor analysis

Vocabulary similar corresponding sides corresponding angles

indirect measurement

scale factor

A ratio is a comparison of two quantities by division

Reading Math

A rate is a ratio of two quantities with different units, such as Rates are usually

Dimensional analysis is a process that uses rates to convert measurements

Using Dimensional Analysis

Using Dimensional Analysis

Cross Products Property