Question 150576
You are taking a history course in which there will be four tests, each worth 100 poins. You have scores of 95, 99 and 100 on the first three tests. You must make a total of 360 in order to get an A. What scores on the last test will give you an A. 
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Let x be the 4th test score.
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EQUATION:
95 + 99 + 100 + x > 360
x + 294 > 360
x > 66 
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Cheers,
Stan H.