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 28 earned runs in 36 innings
pitched? If necessary, round your answer to the nearest hundredth.
The equation for E is E =
0
If a pitcher allows 28 earned runs in 36 innings, then the ERA =

a mantle plume is an upwelling of abnormally hot rock within the earth's mantle. as the heads of mantle plumes can partly melt when they reach shallow depths, they are thought to be the cause of volcanic centers known as hotspots and probably also to have caused flood basalts.

step-by-step explanation:

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third choice down

step-by-step explanation:

the first inequality is based on the number of adults and campers, and the second inequality is based on the cost of feeding both the adult and the camper.

we know that there is room for 525 people max.   it's ok to have less than 525, but it's not ok to have more than 525, so the inequality is less than or equal to.   the number combination of adults (x) and campers (y) cannot exceed this 525 max.   therefore:

x + y ≤ 525

now we talk about cost.   it costs $9 to feed one adult, so depending upon the number of adults you have (x) depends upon how much it will cost to feed that number of adults.   same with the campers, who cost $5 to feed.   the adults can be represented by 9x and the campers can be represented by 5y.   since the budget cannot exceed 1,200, the second inequality is:

9x + 5y ≤ 1200

the answer is b 4pi/3

got it down chief.