## anonymous one year ago The average of Jim's two test scores must be at least 90 to make an A in the class. Jim got a 95 on his first test. What grades can Jim get on his second test to make an A in the class? Jim's score must be at least

1. anonymous

To take the average you add the two scores and divide by how many scores you added. The first test is 95 The second test is x because it is unknown We are averaging two tests. We need a 90 as an average. So $\frac{ 95 + x }{ 2 } = 90$ Solve for x. That will be the score Jim needs

2. horsegirl27

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3. anonymous

okay so average is total sum over number of points of information so the average sum/number=90 sum = (95+B)/2=90 95+B=180 180-95+B B=85

4. anonymous

at least 85

5. anonymous

because if you get a bigger test number for the second test, you get a higher average

6. anonymous