Answer
10a + 13
Work Step by Step
To find the perimeter, we write it as a sum of the length of each side. Then, combine like terms.
8 + 4a + 5 + 6a
= 4a + 6a + 8 + 5
= 10a + 13
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 1 - Introduction to Algebraic Expressions - 1.5 Addition of Real Numbers - 1.5 Exercise Set - Page 43: 86
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