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igor_vitrenko [27]
2 years ago
8

On the first of three tests Kayla scored 72points. On the third test her score was 1 point more than on the second. Her average

on the three tests was 83. What was her scores on the seconds and third testes
Mathematics
1 answer:
Kitty [74]2 years ago
5 0

Answer:

The answer to your question is:

first test = 72

second test = 88

third test = 89

Step-by-step explanation:

Data

First test = 72 points

Second test = x

Third test = x + 1

Average of the three test = 83

Process

       (First test  + Second test  + Third test) / 3  = 83

       ( 72 + x + x +1 ) / 3 = 83

        73 + 2x = 3(83)

        73 + 2x = 249

        2x = 249 - 73

        2x = 176

        x = 176 / 2 = 88   second test

        third test = x + 1 = 88 + 1  = 89

   

         

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