Algebra 2 Common Core

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

Chapter 2 - Functions, Equations, and Graphs - 2-1 Relations and Functions - Practice and Problem-Solving Exercises: 33

Answer

a. $109.4$ b. $10.4$ c. $-11.1$ d. $-7.2$

Work Step by Step

a. Write formula $F=\frac{9}{5}C+32$ Plug values into formula $m=\frac{9}{5}(43)+32$ Multiply $m=77.4+32$ Add $m=109.4$ b. $F=\frac{9}{5}C+32$ $n=\frac{9}{5}(-12)+32$ $n=-21.6+32$ $n=10.4$ c. $F=\frac{9}{5}C+32$ $12=\frac{9}{5}p+32$ $-20=\frac{9}{5}p$ $\frac{-20}{\frac{9}{5}}=\frac{\frac{9}{5}p}{\frac{9}{5}}$ $-11.1=p$ d. $F=\frac{9}{5}C+32$ $19=\frac{9}{5}q+32$ $-13=\frac{9}{5}q$ $\frac{-13}{\frac{9}{5}}=\frac{\frac{9}{5}q}{\frac{9}{5}}$ $-7.2=q$
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