After 5 tests, her average was 88. To have a seven-test average of 90, the total must be:
Her average after 5 tests was 88. Her total score on the 5 tests is:
Subtract:
Find the average by dividing by 2:
Her average must be 95
(31 points) Wilson County School District consists of 2,548 students. The district decided to conduct a survey regarding their n
1 answer:
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