Answer
a=10
Work Step by Step
$\frac{15}{a}=\frac{3}{2}$ cross multiply
$3a=15\times2$ divide both sides by 3
$3a\div3=30\div3$ simplify
$a=10$
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 - Practice and Problem-Solving Exercises - Page 127: 19
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