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Mathematics, 26.03.2021 16:00 hahHcjckk
Heather is participating in a -day cross-country biking challenge. She biked for, and miles on the first three days. How many miles does she need to bike on the last day so that her average (mean) is miles per day?
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Heather is participating in a -day cross-country biking challenge. She biked for, and miles on the f...
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