Flashcard 1 - Math Flashcard Set for the SAT Exam

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It is given that the county has 192 miles of bicycle paths initially and that 3 additional miles are to be constructed each year. The number of years, however, is subject to variation, so using the variable y to equal number of years, the expression 192 + 3y represents how many miles of bicycle paths the county will have after y years. Building began in 2016 and is scheduled to continue into 2025, meaning 2025 – 2015 = years of construction following 2015, or 10 years. Hence, 192 + 3(10) = miles of bicycle paths in 2025, or 192 + 30 = 222 total miles of bicycle paths.