Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 5 - Ratio and Proportion - 5.5 Solving Application Problems with Proportions - 5.5 Exercises - Page 365: 25

Answer

83 people ordered vanilla. When flipping one side of the proportion the result, 750 people ordered vanilla, is unreasonable because it exceeds the total number of people.

Work Step by Step

Correct $\frac{1\ vanilla}{3\ people} = \frac{x\ vanilla}{250\ people}$ $3x = 1\times250$ $\frac{3x}{3} = \frac{250}{3}$ $x = 83$ Incorrect $\frac{1}{3} = \frac{250}{x}$ $1x = 3\times250$ $x = 750$
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.