A group of 7 friends line up for a picture. Two of the friends are named Bert and Gert. How many ways are there for the friends to line up so that Bert is somewhere to the left of Gert (although Bert and Gert are not necessarily next to each other)?

A group of 7 friends line up for a picture. Two of the friends are named Bert and Gert. How many ways are there for the friends to line up so that Bert is somewhere to the left of Gert (although Bert and Gert are not necessarily next to each other)?

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter9: Systems Of Equations And Inequalities

Section9.2: Systems Of Linear Equations In Two Variables

Problem 38E

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Concept explainers

Counting Principles

In statistics, the counting principle can be said to be the concept in which the quantity of an item is determined. There can be a single item, or a group of items, or items that are related to each other. In every possible set of items, the quantity of the possible item groups or their sorting measures can be determined with counting principles.

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A group of 7 friends line up for a picture. Two of the friends are named Bert and Gert.
How many ways are there for the friends to line up so that Bert is somewhere to the
left of Gert (although Bert and Gert are not necessarily next to each other)?

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