Answer
Please see the graph.
about 68.5 mph
Work Step by Step
$t = 240/r + .5$
$4 = 240/r + .5$
$3.5 = 240/r$
$3.5r = 240$
$r = 240/3.5$
$r= 68.57$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 11 - Rational Expressions and Functions - 11-7 Graphing Rational Functions - Lesson Check - Page 698: 3
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