Suppose that the world's current oil reserves is R = 1880 billion barrels. If, on average, the total reserves is decreasing by 25 billion barrels of oil each year, answer the following:

Question

A.) Give a linear equation for the total remaining oil reserves, R , in terms of t , the number of years since now.

R=

B.) 10 years from now, the total oil reserves will be _____ billions of barrels.

C.) If no other oil is deposited into the reserves, the world's oil reserves will be completely depleted (all used up) approximately ________ years from now. (Round your answer to two decimal places.)

Answer 1

R = 1880 - 25T

in 10 years

R=1880-25(10) = 1880-250 = 1630 billion

R=0 = 1880-25T

T =1880/25 = 75.20 Years until completed depleted