To find a baseball pitcher's earned run average (ERA), you can use the formula E1 = 9r, in which E represents ERA, I represents the number of innings pitched, and represents the number of earned runs
allowed. Solve the equation for E. What is a pitcher's ERA If he allows 13 earned runs in 18 innings
pitched? If necessary, round your answer to the nearest hundredth.
The equation for E is E =
If a pitcher allows 13 earned runs in 18 innings, then the ERA=