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ololo11 [35]
4 years ago
14

The mean score of 5 students for math is 405. The score of 3 students is 78,82, 85. The rest two students had the same score. Wh

at is the score of these two students?
Mathematics
1 answer:
Leviafan [203]4 years ago
5 0

890

Step-by-step explanation:

Let's assume the two students each scored an unknown x marks. The total of the 2 students will be x + x = 2x

We’ll add the 2x to the total of the three (3) students. Therefore the total for all five (5) students it will be;

78 + 82  + 85 + 2x

Their mean is 405. Therefore;

(78 + 82 + 85 + 2x) / 5 = 405

Lets solve the equation now;

245 + 2x = 405 * 5

2x = 2025 – 245

2x = 1780

X = 1780 / 2

X = 890

Learn More:

For more on mean check out;

brainly.com/question/11969455

#LearnWithBrainly

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3 years ago
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Answer:

Step-by-step explanation:

We are given an equation d = 65 t, where d represents the distance, in miles, that the car travels at this speed in t hours.

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