To find a baseball pitcher's earned run average (ERA), you can use the formula Ei = 9r, in which E represents ERA, i represents the number of innings pitched, and r represents the number of earned runs allowed. Solve the equation for E. What is a pitcher's ERA if he allows 57 earned runs in 63 innings pitched? If necessary, round your answer to the nearest hundredth.

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16 December, 20:41

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Jaylene Christensen · Answer 1

Ei = 9r

E = (9r) / i

E = (9 * 57) / 63

E = 513/63

E = 8.14 <==