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Alula has the following quiz scores: 17, 10, 9, 14, 16, 8, 10, and 10. What must the sum of her next three quiz scores be in order to have an overall average of 14?

 Jun 29, 2022
 #1
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[17 + 10 + 9 + 14 + 16 + 8  + 10 + 10 + sum ] /  11 =  14

 

[ 94 + sum ] =  14 *11

 

94 + sum =   154

 

sum = 154 - 94   

 

sum = 60

 

 

 

 

cool cool cool

 Jun 29, 2022
edited by CPhill  Jun 29, 2022
edited by CPhill  Jun 29, 2022

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