Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapters 1-9 - Cumulative Review Exercises: 30

Answer

The total amount charged to Portia's credit card is around $31.91 dollars.

Work Step by Step

1. Cost of the two CDs Let $C=$ cost of the two CDs $C = 2 \times 14.98$ $C = 29.96$ dollars 2. Cost of the CD tax Let $T =$ cost of the CD tax (per CD) $T = 14.98 \times \frac{6.5}{100}$ $T = 14.98 \times .065$ $T = 0.9737$ dollars per CD (tax) Therefore the TOTAL tax for the TWO CDs is $ = 0.9737 \times 2 $ $= 1.9474$ dollars 3. Adding up the cost of the CD and the taxes for it Let $x =$ total amount charged to Portia's credit card $x = 29.96 + 1.9474$ $x = 31.9074$ dollars $x \approx 31.91$ dollars
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.