Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 11 - Rational Expressions and Functions - Cumulative Test Prep - Gridded Response - Page 710: 23

Answer

$8 \space hours$

Work Step by Step

As we know Speed = distance $\div$ time $Speed = (300) \div (6)$ $Speed =50 \space mph$ New speed becomes: $50 +5 =55$ mph The time taken let us say $T$by Sandra with this new speed can be calculated as: $T= \dfrac{440}{55}$ $T =8 \space hours$
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