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
1 answer:
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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