Answer
$6\frac{3}{4}$ hours
Work Step by Step
$\frac{4}{3}=\frac{9}{h}$ cross multiply
$4h=3\times9$ divide both side by 4
$4h\div4=27\div4$ simplify
$h=6\frac{3}{4}$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 2 - Solving Equations - 2-7 Solving Proportions - Lesson Check - Page 127: 5
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