Prealgebra (7th Edition)

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

Chapter 3 - Review: 93


Hawaii has 4371 roadway miles. Delaware has 6302 roadway miles.

Work Step by Step

Let $h$ be the roadway miles in Hawaii. The roadway miles in Delaware is $h+1931$. $h+h+1931=10673$ $\longrightarrow$combine like terms $2h+1931=10673$ $\longrightarrow$addition property $2h+1931-1931=10673-1931$ $\longrightarrow$combine like terms $2h=8742$ $\longrightarrow$multiplication property $2h\div2=8742\div2$ $\longrightarrow$divide $h=4371$ $h+1931=4371+1931=6302$
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