Write an algebraic expression for the specified quantity.A car radiator has 50 liters of a mixture that is 40% antifreeze. To strengthen the mixture, pure (100%) antifreeze must be added. Let x = the number of liters of pure antifreeze added to the 50-liter mixture. Write an algebraic expression for (i) the number of liters of mixture there will be once the pure antifreeze is added; (ii) the number of liters of antifreeze in the mixture obtained by adding the pure antifreeze to the original 50-liter mixture.
A. (i) 50 + x
(ii) 25 + x
B. (i) 50 - x
(ii) 20 - x
C. (i) 50 - x
(ii) 16.7 + x
D. (i) 50 + x
(ii) 20 + x
Answer: D
Mathematics
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A. 
B. {1 - 
, 1 + 
}
C. {1 - 
, 1 + 
}
D. 
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