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4 votes
To get a B in math, I must average 80 on 5 test. My scores on the 1st 4 test were 83, 75, 83, amd 78. What is the lowest score that I can get on the last test to still get a B?

User Quantum
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3.2k points

2 Answers

6 votes

Answer:

83+ 75+ 83+ 78=319

319 divided by 4=79.75 so a high c

83+ 75+ 83+ 78+80=399

399 divided by 5=79.8 not quite

83+ 75+ 83+ 78+85=404

404 divided by 5=80.8

83+ 75+ 83+ 78+81=400

400 divided by 5=80

so you have to get a 80 to still get a b

User Benoti
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3.6k points
6 votes

Answer81 is the lowest you can get on the last test and still get a B.

Step-by-step explanation:I used the mean average and guess and check.

User Ernest Sadykov
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3.3k points