I'm not good at math
2007-12-16 00:09:05 · 5 answers · asked by Shamu 2 in Science & Mathematics ➔ Mathematics
Let me re-word the question. If you are running AT A RATE of 21 miles an hour, how fast would you run 40 yards if that is the case?
2007-12-16 00:20:56 · update #1
21 miles = 21 x 1760 yds = 36960 yds
36960 yds<--------->3600 sec
40 yd<-------->(40/36960) x 3600 sec
3.9 sec
2007-12-20 00:00:19 · answer #1 · answered by Como 7 · 0⤊ 0⤋
You run 21 times 1760 yards in an hour.
The answer , in hours, is 40/(21 x 1760).
Multiply result by 60 to get minutes..
2007-12-16 00:17:56 · answer #2 · answered by William B 4 · 0⤊ 0⤋
Time in hours = 40 / (21 x 1760).
Time in seconds = 3600 x 40 / (21 x 1760) = 3.896 seconds.
2007-12-16 03:20:44 · answer #3 · answered by bh8153 7 · 0⤊ 0⤋
21 miles= 21 into 1760 yds. It takes one hour.
For 40 yds how much time it takes.
36960 yds will take 60 minits.
For 40 yd it takes (40/36960) into 60 minits.
0.00649 minits it will take.
2007-12-16 01:06:16 · answer #4 · answered by Sasi Kumar 4 · 0⤊ 0⤋
nobody can run 21 miles an hour
2007-12-16 00:16:19 · answer #5 · answered by Byakuya 7 · 0⤊ 0⤋