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Mathematics>Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer.

Tony is selling boxes of candy for $15 each and T-shirts for $20 each for a fundraiser for his soccer team. Tony's goals are that his total fundraiser sales from these two items will be more than $300, and that he will sell at least as many T-shirts as boxes of candy. Which of the following systems of inequalities best models this situation, where c is the number of boxes of candy and t is the number of T-shirts Tony needs to sell to meet his goals?

A.c+t>300; 20t≤15c
B.c+t>300; 20t≥15c
C.15c+20t>300; t≥c
D.15c+20t>300; t≤c

答案和解析

答案：C

解析：

Choice C is correct.