Mathematics Test—No Calculator - SAT Suite of Assessments

x. be the number of easy puzzles Tina solved. Then, 50 minus x. is the number of hard puzzles she solved. And since she earned a total of 1,950 points, it must be true that 30 x. plus 60, open parenthesis, 50 minus x, close parenthesis, equals 1,950. Solving this equation for . x. gives . x equals 35, and so 50 minus x. equals 15. ................
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