During a four-week period, you worked the following hours: Week 1- 36 3/8 hr; Week 2- 41 1/4 hr; Week 3- 40 1/2 hr; Week 4- 38 3/8 hr What is the average number of hours you worked in one week?

Respuesta :

(36 3/8 + 41 1/4 + 40 1/2 + 38 3/8) / 4 = 

36 + 41 + 40 + 38 = 155
3/8 + 1/4 + 1/2 + 3/8 = 3/8 + 2/8 + 4/8 + 3/8 = 12/8 = 1 1/2
155 + 1 1/2 = 156 1/2

(156 1/2) / 4 = 
313/2 * 1/4 = 313/8 = 39 1/8 <===average is 39 1/8 per week

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