Answer
15 min
Work Step by Step
We can write this as a proportion:
10:60 = x:90, or $\frac{10}{60} = \frac{x}{90}$
Cross-multiply: 10*90 = 60x, x = 15
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 4 - Quadratic Functions and Equations - 4-2 Standard Form of a Quadratic Function - Practice and Problem-Solving Exercises - Page 208: 54
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