Diane is participating in a 5-day cross-country biking challenge. She bikes for 47, 46, 61, and 50 miles on the first 4 days. How many miles does she need to bike on the last day so that her average (mean) is 53 miles per day
She wants 250 in 5 days bc 53x5=250. Then add 47,46,61, and 50. This is 204. After you do 250-204 which equals 46. Answer: So Diane needs to run 46 miles on the 5th day to make her goal.
