Solve the system by graphing.x - y = 2x + y = 10
A. {(12, 8)}
B. {(4, 6)}
C. {(8, 12)}
D. {(6, 4)}
Answer: D
Mathematics
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. y = 
, y = 0, x = 0, x = 1
A. 
B. 4?
C. 2?
D. ?
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Write the ratio as a percent.
A. 34% B. 24% C. 48% D. 0.24%
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Simplify the radical expression by factoring out the largest perfect nth power. Assume that all variables are positive.
A. 
B. y2 - 4
C. 
D. 4y2
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Set up the percent proportion for the application problem. Do not try to solve for any unknowns.A chemical is 78% pure. In 760 grams of the chemical, how much is pure?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics