Answer
$24$
Work Step by Step
Let $x$ be the number of outlets installed in a house of seven rooms.
$\frac{20}{6} = \frac{x}{7}$
$x=\frac{20}{6}\times7$
$x=\frac{70}{3}$
$x=24$ (Rounding up)
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Chapter 5 - Section 5.1 - Ratios, Rates, and Proportions - Exercises - Page 226: 19
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