Melissa walked at a rate of 88 feet per minute. What was her approximate speed to the nearest tenth of a mile per hour?
a 0.1 miles per hour
b 1.0 miles per hour
c 2.8 miles per hour
d 8.8 miles per hour
1 foot = 0.000189394 miles 1min = 1/60 =0.01667 hours
so 1foot per min = 1*0.000189394/0.01667 miles per hour and 88 feet per min = 88*1*0.000189394/0.01667 miles per hour = 1.0000003 miles per hour which is equal to 1.0 miles per hour
