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To enter a competition,students must score a total of at least 430 points on five qualifying tests.
Each test is worth 100 points. On the first four tests, your scores were 91, 81, 76, and 85.
What are three possible scores you can earn on the last test to enter the competition?
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91 + 81 + 76 + 85 + x >= 430.
333 + x >= 430.
x >= 430 - 333,
x >= 97.
Three possible values for x are 97, 98 and 99.
And there is the fourth value: x = 100.