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Leila is participating in a

6

-day cross-country biking challenge. She biked for

78

,

59

,

70

,

48

, and

65

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

61

miles per day?

Verified Answer :

she needs to ride 46 miles . to get this answer you multiply 61 by 6 and get 366. then you add  up all the numbers and get 320 then you subtract 366 by 320 . 

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