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Mathematics>Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
0.18c + 1.08t = 90
In the equation above, if 90 represents the total amount of dollars spent on a purchase of c ounces of copper and t ounces of tin, what is the cost, in dollars, of 1 ounce of tin?
(A) 0.18
(B) 1.08
(C) 6
(D) 83.33
