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jack5397
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chetan2u

jack5397
­



The line graph tracks the gross production of natural gas in billions of cubic feet (where 1 billion = 1,000,000,000) in four countries over a period of five years.

Select from each of the drop-down menus the option that creates the most accurate statement based on the information provided.


 
­(1) In 2007, the percent growth in gas production over the 2004 level in Mexico was _____that in Venezuela.
So we have to take the % growth separately for both Mexico and Venezuela and then compare the two.
a. Mexico: 1500 approx to 2000, so 500 over 1500, that is 33.33%.
b. Venezuela: 2000 approx to 2500, so 500 over 2000, that is 25%.
Clearly,  greater than is the answer 

(2) The average (arithmetic mean) amount of increase in natural-gas production from 2004 to 2008 was closest to billion cubic feet.­
Add all in 2004 and then in 2008, find the difference and divide by 4.
But I would be more comfortable in findin the difference in each.
a. Mexico: 1500 approx to 1800, so 300
b. Venezuela: 2000 approx to 2500, so 500
c. Brazil: 600 to 750, so 150.
d. T and T: 1050 to 1500, so 450
Add all, so 300+500+150+450 or 1400, so average will be 1400/4 or 350.


SATYAM7777
­Thank you chetan2u
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how are we supposed to see the 1050 and the 750 part? i used that as 1000 and 700 so got different answer
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