The average number of miles that he would have to ride each day to meet his goal is 20 + 4x = 45.6.
let the average number of miles be represented by x.
Total number of miles = 45.6
Therefore the expression will be:
20 + (4 Ć x) = 45.6
20 + 4x = 45.6
4x = 45.6 - 20
4x = 25.6
x = 25.6/4
x = 6.4 miles
He has to ride 6.4 miles per day.
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