Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Skills Handbook - Ratios and Proportions - Exercises - Page 974: 8

Answer

$n \approx 13.3$

Work Step by Step

Before we can solve this proportion, let's rewrite it in a more conventional way as two equal ratios: $\dfrac{8}{15} = \dfrac{n}{25}$ To solve a proportion, we use the cross products property, multiplying the numerator of one ratio with the denominator of the other ratio, and vice versa: $25(8) = 15n$ Multiply on the left side of the equation: $200 = 15n$ Divide each side of the equation by $15$ to solve for $n$: $n \approx 13.3$
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