SOLUTION: The top three sources of oil imports for the United States in the same year were Saudi Arabia, Mexico, and Canada. The three top countries accounted for 45% of oil imports. The Uni

Question 1129296: The top three sources of oil imports for the United States in the same year were Saudi Arabia, Mexico, and Canada. The three top countries accounted for 45% of oil imports. The United States imported 1.8 percentage points more from Saudi Arabia than they did from Mexico, and 1.3 percentage points more from Saudi Arabia than they did from Canada. What percent of the United States oil imports were from these three countries? (Round your answers to one decimal place.)

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The top three sources of oil imports for the United States in the same year were Saudi Arabia, Mexico, and Canada. The three top countries accounted for 45% of oil imports. The United States imported 1.8 percentage points more from Saudi Arabia than they did from Mexico, and 1.3 percentage points more from Saudi Arabia than they did from Canada. What percent of the United States oil imports were from these three countries? (Round your answers to one decimal place.)
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Equations:: S + M + C = 0.45
S = M + 0.018
S = C + 0.013
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Substitute and solve for "S"::
S + S-0.018 + S-0.013 = 0.45
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3S - 0.031 = 0.45
3S = 0.481
S = 0.1633.. = 16.33% (percent of oil imported from Saudi Arabia)
M = 16.33%-1.8% = 14.53% (percent of oil imported from Mexico)
C = 16.33%-1.3 = 15.03% (percent of oil imported from Canada
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Cheers,
Stan H.
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