Algebra 1

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

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 $a=10$
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