Answer
x=2.8
Work Step by Step
$\frac{x}{12}=\frac{7}{30}$ cross multiply
$30x=84$ divide both sides by 30
$30x\div30=84\div30$ simplify
$x=2.8$
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 - Mixed Review - Page 129: 70
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