Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 1 - Problem Solving and Critical Thinking - 1.3 Problem Solving - Exercise Set 1.3 - Page 38: 8


15 inches.

Work Step by Step

The scale of the blueprint is $1 inch = 6 feet$. The length of the house is $90 feet$. The width of the house is $30 feet$. We are asked to calculate the length of the house on the blueprint. The unnecessary piece of information is the house's width since we don't need it to calculate the length on the blueprint. The length of the house on the blueprint is: $90 \div 6 =15$ (inches)
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