janetn611
contestada

suppose you score 40 out of 100 points on a math test. if you get 100 on all other math test. how many more test will it take for you to bring your mean score up to 80?

Respuesta :

depends on how many tests there are
Your answer would be about 4. 
40 + 100 + 100 + 100 = 340
340 divided by 4 = 85
I hope this helps!

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