Prealgebra (7th Edition)

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

Chapter 3 - Cumulative Review - Page 210: 49


The cost of the software is \$420. The cost of the computer system is \$1680.

Work Step by Step

Let the cost of the software be $s$. The cost if the computer system be $4s$. $s+4s=2100$ $\longrightarrow$combine like terms $5s=2100$ $\longrightarrow$multiplication property $5s\div5=2100\div5$ $\longrightarrow$divide $s=420$ $4s=4\times420=1680$
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.