## Algebra 2 (1st Edition)

Published by McDougal Littell

# Chapter 1, Equations and Inequalities - 1.2 Evaluate and Simplify Algebraic Expressions - 1.2 Exercises - Problem Solving - Page 15: 57

#### Answer

1974=1.89 USD 1984=3.10 USD 1994=4.51 USD 2004=5.82 USD

#### Work Step by Step

Since we know that the prices of tickets got higher by 0.131 USD every year we can just calculate the number of years that have passed since 1974, which we will mark as "x", and just add it to the equation. For 1974 x=0 since 0 years passed since 1974 therefore the price of ticket would be $0.131\times0+1.89=1.89$ USD For 1984 x=10 since 10 years passed since 1974 therefore the price of the ticket would be $0.131\times10+1.89=3.20$ USD For 1994 x=20 since 20 years passed since 1974 therefore the price of the ticket would be $0.131\times20+1.89=4.51$ USD For 2004 x=30 since 30 years passed since 1974 therefore the price of the ticket would be $0.131\times30+1.89=5.82$ USD

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