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Sergio [31]
4 years ago
9

Brian is participating in a 4-day cross-country biking challenge. He biked for 48, 55, and 58 miles on the first three days. How

many miles does he need to bike on the last day so that his average (mean) is 54 miles per day?​
Mathematics
1 answer:
alexandr402 [8]4 years ago
3 0

Answer:

55

Step-by-step explanation:

(55+55+58+48) ÷4

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