Math problems

@jinuxnet (675)
Philippines
February 27, 2007 11:13pm CST
32. A biker rode 45 miles in 180 minutes. At what speed (in miles per hour) was the biker traveling? 17 15 12 9 4 and why?
1 response
Methodless
@Methodless (882)
• Canada
28 Feb 07
15 miles per hour 180 minutes = 3 hours 45/3 = 15
jinuxnet
@jinuxnet (675)
• Philippines
28 Feb 07
nice answer very good. how about the others? can you answer and what is your formula?