Answered

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The mean of Tom’s scores on 5 tests was 77.4%. The scores on his first four tests were 88, 77, 70, and 72. What was Tom’s score on his fifth test?

Sagot :

Answer:

80.

Step-by-step explanation:

His total score for 5 tests = 5 * 77.4 = 387 .

Sp his score for fifth test

= 387 - (88 + 77 + 70 + 72)

= 387 - 307

= 80.

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