The average of 5 quiz scores is 10. When the lowest grade is dropped and the new average is calculated, it turns out to be 11. What was the score of the dropped grade?

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The average of 5 quiz scores is 10. When the lowest grade is dropped and the new average is calculated, it turns out to be 11. What was the score of the dropped grade?

In Algebra I am given the following problem: Draw a right circular cylinder of radius 5 in. and height 10 in., and find the lateral surface area. I don't know the difference...

a.a-11=5 b. 5a=11 c. a-5=11 d. a+5=11

use D=RT

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I have to find the exact value for this expression.

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