Answer
$10$ minutes
Work Step by Step
Need to find the time duration for the person talk.
Number of minutes are = $x$
Thus, as per the statement, we have
$0.43+0.32x+2.10=5.73$
or, $0.32x=5.73-2.53$
or, $x=\dfrac{3.2}{0.32}=10$ minutes
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 1 - Section 1.5 - Problem Solving and Using Formulas - Exercise Set - Page 68: 47
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