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Jim scores the following marks in 8 tests. 7 8 y 6 9 10 5 His mean mark is 7,5 Calculate the value of y.

Jim scores the following marks in 8 tests. 7 8 y 6 9 10 5 His mean mark is 7,5 Calculate the value of y.
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Jim scores the following marks in 8 tests.

7
8
y 6 9 10 5
His mean mark is 7,5
Calculate the value of y.

asked
User DanielGrech
by
8.3k points

1 Answer

7 votes

Answer:

7.5

Explanation:

7+8+y+6+9+10+5=7.5×2

45+y=52.5

y=52.5–45

answered
User Buggieboy
by
8.6k points
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