need help with word problems

Mathematics
Tutor: None Selected Time limit: 1 Day

Felipe is participating in a 5-day cross- country biking challenge. he biked for 64, 55, 68, and 69 miles on the first four days. how many miles does he need to bike on the last day so that his average (mean) is 62 miles per day?

Jun 21st, 2015

Thank you for the opportunity to help you with your question!

64+55+68+69+x /5 =62

256+x= 62*5

x=310-256 = 54

so he need to bike 54 miles more so that his average (mean) is 62 miles per day

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 21st, 2015

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