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Jacque has grades of 81 and 84 on her first two algebra tests. If she wants an average of at least 73, what possible scores can she make on her third test?

User Orson
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1 Answer

3 votes

Answer: 54 , 55 , 56 , 57 , ...

Explanation:

Let the third grade be x , then Jacque scores in the three tests will be :

81 , 84 , x.

the average of the scores =
(81+84+ x)/(3)

Since Jacque wants an average of at least 73 , this means that :


(81+84+x)/(3)\geq 73


81 + 84 + x \geq 219


165 +x \geq 219


x \geq 219 - 165


x\geq 54

This means her possible scores will be :

54 , 55 , 56 , 57 , ...

User Ghebrehiywet
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