Prealgebra (7th Edition)

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

Appendix B - Exercise Set: 59

Answer

$\frac{3}{10}$

Work Step by Step

Use the definition of negative exponents. $5^{-1}+10^{-1}=\frac{1}{5}+\frac{1}{10}=\frac{1\times2}{5\times2}+\frac{1}{10}=\frac{2}{10}+\frac{1}{10}=\frac{3}{10}$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.