Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 1 - Section 1.7 - Exponents and Order of Operations - Exercise Set: 55

Answer

$8$

Work Step by Step

Solve using PEMDAS (The priority list for solving expressions: Parentheses, exponents, [multiplication, division], [addition, subtraction]. For the operations in the brackets, solve from left to right.) For fractions, the numerator and denominator must both be simplified before division can occur. $\dfrac{5+12 \div 4}{1^2} = \dfrac{5+12 \div 4}{1} = \dfrac{5+3}{1} = \dfrac{8}{1} = 8$
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