xn = xn-1 - (n + 2).
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78/65 x 100 = 120 Therefore, 78 is 120 percent of 65.
Divide 78/72 to give miles per minute. Then multiply by 60 to give miles per 60 minutes or miles per hour. 78 miles in 72 minutes = 65 mph.
72 x 78 = 5616
6. 72/6=12 78/6=13
72/78 = 36/39 = 12/13