Answer
y=4.2
Work Step by Step
Use cross multiplication since the variable is in the denominator.
$\frac{1.5}{y}=\frac{2.5}{7}$ cross multiply
$2.5y=10.5$ divide both sides by 2.5
$2.5y\div2.5=10.5\div2.5$ simplify
$y=4.2$
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 128: 47
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