Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - 1-5 Adding and Subtracting Real Numbers - Practice and Problem-Solving Exercises: 61

Answer

29.62 in

Work Step by Step

To find the final reading on the barometer, add each amount by which the mercury rises and subtract the amount by which the mercury falls. $29.8+0.02-0.09-0.18+0.07\longrightarrow$ use commutative property to group positive and negative numbers together $=29.8+0.02+0.07+-0.09+-0.18\longrightarrow$ add the positive and the negative addends $=29.89+(-0.27)$ add $=29.62$
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.