Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 5 - Ratio and Proportion - Summary Exercises - Ratio, Rates and Proportions - Page 359: 12

Answer

Brand P has the lowest price per pound of cat food ($\$0.57/pound$).

Work Step by Step

We calculate the cost of cat food per pound for each brand: Brand N: $\$3.75$, $\$1$ off: $\$3.75-\$1.00=\$2.75$ $\$2.75$ for $3.5$ pounds: $\$2.75\div 3.5\approx\$0.79/pound$ Brand P: $\$5.99$, $\$2$ off: $\$5.99-\$2.00=\$3.99$ $\$3.99$ for $7$ pounds: $\$3.99\div 7\approx\$0.57/pound$ Brand R: $\$10.79$ for $18$ pounds: $\$10.79\div 18\approx\$0.60/pound$ We see that Brand P comes out the cheapest.
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.