Tammy is participating in a 4 -day cross-country biking challenge. She biked for 54 , 6

Anonymous
timer Asked: May 19th, 2015

Question description

Tammy is participating in a 

4

-day cross-country biking challenge. She biked for 

54

69

, and 

51

 miles on the first three days. How many miles does she need to bike on the last day so that her average (mean) is 

58

 miles per day

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