2006-09-12 10:14:10 · 8 answers · asked by ic2011 5 in Science & Mathematics ➔ Mathematics
The 1 3/16 in 1 min. 55 seconds is a greater rate.
To do this:
1.25 mi / 124 sec = 0.01008 mi/s
1.1875 mi / 115 sec = 0.01033 mi/s
so the latter rate is faster
2006-09-12 10:17:56 · answer #1 · answered by Shortstuff71 3 · 0⤊ 1⤋
Let's change it all to improper fractions and common units.
1 1/4 = 5/4 mi
2 min 4 sec = 124 sec
1 3/16 = 19/16 mi
1 min 55 sec = 115 sec
Now divide!
5/4 / 124 = 0.010080645161290322580645161290323
19/16 / 115 = 0.010326086956521739130434782608696
It's pretty close! But the second problem has a slightly faster speed of .0103 miles per second. Hope this helps!
2006-09-12 17:19:31 · answer #2 · answered by J G 4 · 0⤊ 0⤋
1 1/4 mi in 2 min 4 sec = 5 miles in 496 seconds
the second is 19 miles in 1840 seconds
By subtracting 5/496 - 19/1840 = -7/28520, thus 1 3/16 mi in 1 min. and 55 sec. is greater
2006-09-12 17:19:13 · answer #3 · answered by maegical 4 · 0⤊ 0⤋
1 3/16 miles in 55 seconds is the greater rate because the rate of speed is 114 ft/s, as opposed to 1 1/4 in 2min4s which is 53.225 ft/s.
2006-09-12 17:18:58 · answer #4 · answered by M C 1 · 0⤊ 1⤋
1 3/16 mi in 115 seconds = 17.5 yards per second= 52.5 ft/sec
1 1/4 mi in 124 secs = 17 yards per sec = 51 ft per second
2006-09-12 17:25:33 · answer #5 · answered by RANDLE W 4 · 0⤊ 0⤋
1 3/16 (units what?) in 1min. and 55 sec!
2006-09-12 17:31:45 · answer #6 · answered by joey 2 · 0⤊ 0⤋
r = d/t
2min 4sec = 124sec; 1min 55 sec = 115sec
1.25mi/124sec = .0101mi/sec
1.1875mi/115sec = .0103mi/sec
the second is greater
2006-09-12 17:18:30 · answer #7 · answered by godmike 2 · 0⤊ 0⤋
13/16 in 1min. and 55sec.
2006-09-12 17:18:13 · answer #8 · answered by VanessaM 3 · 0⤊ 1⤋