To find a baseball pitcher's earned average (ERA), you can use the formula Ei=9r where 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 the pitchers ERA if he allows 5 earned runs in 18 innings pitched

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13 November, 09:36

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Scott Nichols · Answer 1

Ei = 9r ... E = (9r) / i

i = 18

r = 5

now we sub

E = (9 * 5) / 18

E = 45/18

E = 2.5 ... the pitchers ERA is 2.5