T=14.29ln(0.00411r+1)

I need help solving it because somehow I am messing up. r is the estimated world oil reserves in billions of barrels and T is the time before that amount of oil is depleted. The question is: How many barrels of oil are necessary to last 20 years?

Reply 1

Eau

T= 20

20 = 14.29 ln (0.00411r + 1) = ln (0.00411r + 1)^14.29

e^20 = (0.00411r + 1)^14.29

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T=14.29ln(0.00411r+1)

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