2 years ago

Can somebody help me with this plz......

Mathematics

1 answer:

adelina 88 [10]2 years ago

5 0

Answer:

He must score 83 in the last test.

Step-by-step explanation:

To get a mean of 80 Terry must score a total of 4*80 = 320 over the 4 tests.

So his score for the last test must be 320 - (71 + 80 + 86)

= 320 - 237

= 83.

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