Answer:
A) R = 1900 -24t
B) 1684 billion barrels
C) 79.17 years
Step-by-step explanation:
<h3>A)</h3>
Reserves start at 1900 billion barrels and decrease by 24 billion barrels each year. The value for t=0 is 1900; the value for t=1 is 24 less.
R = 1900 -24t
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<h3>B)</h3>
For t=9, the reserves will be ...
R = 1900 -24(9) = 1900 -216 = 1684 . . . . billion barrels
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<h3>C)</h3>
The reserve will be 0 when ...
0 = 1900 -24t
24t = 1900 . . . . . add 24t
t ≈ 79.17 . . . . divide by 24
Reserves will be gone in about 79.17 years.
Xavier
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good luck :)
12-(-3)= 12+3=15, so the difference is 15 points
Answer:
The answer is B, this is because we already 60 students play in the orchestra, we just don’t know how many play cello. But we do know it is 20 percent of the orchestra. That way we know that the correct graph is B.
Please mark me Brainliest if I got it right. Thank you and have a nice day!
