Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 1 - Section 1.12 - Multiplication and Division of Decimal Fractions - Exercises - Page 72: 29


9.68 in

Work Step by Step

Convert to a decimal by dividing the numerator by the denominator. $8\frac{7}{8}\ in=8.875\ in$ Multiply the riser height by 12 to find the total height of the staircase. $8.875\ in\times12=106.5\ in$ Divide the total height by 11 to find the new riser height. $106.5\ in\div 11=9.68\ in$
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