taiwan-gsat 2008 Q2

taiwan-gsat · Other · gsat__math Not Maths
2. In professional baseball, the ERA (Earned Run Average) is an important statistic for understanding a pitcher's performance. It is calculated as follows: If a pitcher has pitched $n$ innings with a total of $E$ earned runs, then the ERA is $\frac { E } { n } \times 9$. A pitcher previously pitched 90 innings with an ERA of 3.2. In the most recent game, this pitcher pitched 6 innings with no earned runs. After completing this game, the pitcher's ERA becomes
(1) 2.9
(2) 3.0
(3) 3.1
(4) 3.2
(5) 3.3
& 2 & & 14 & 7 & & 30 & 2
2. In professional baseball, the ERA (Earned Run Average) is an important statistic for understanding a pitcher's performance. It is calculated as follows: If a pitcher has pitched $n$ innings with a total of $E$ earned runs, then the ERA is $\frac { E } { n } \times 9$. A pitcher previously pitched 90 innings with an ERA of 3.2. In the most recent game, this pitcher pitched 6 innings with no earned runs. After completing this game, the pitcher's ERA becomes\\
(1) 2.9\\
(2) 3.0\\
(3) 3.1\\
(4) 3.2\\
(5) 3.3