when you drive to niagara falls in canada you notice you are going 55mph. you pass a speed limit sign that reads 100km/hr. are you speeding? how many miles over or under the speed limit are you (use the conversion 1km=0.6 miles. Help PLEASE!!!
2006-09-25 04:43:26 · 6 answers · asked by TERRI L 2 in Science & Mathematics ➔ Biology
Hmm, this's under "biology"?
First, convert 100km/h to mph by multiplying 100 by 0.6 = 60mph.
Then, i'm sure you should be able to infer whether or not you were above the speed limit, when you were travelling at 55mph.
Subtracting it from the speed limit gives you the answer to the second part.
2006-09-25 04:49:02 · answer #1 · answered by chemistry_freako 3 · 1⤊ 0⤋
If 1 km = 0.6 mi, then (0.6 mi / 1 km) is equal to one. You can therefore multiply 100 km/hr by that conversion factor without changing its value, but it will now be in terms of mph (mph is mi/hr) and you can easily compare it to the speed of the car.
2006-09-25 04:48:05 · answer #2 · answered by DavidK93 7 · 0⤊ 0⤋
easy take 100/ 2 = 50
plus 10% of 100 = 10
= 60 km/hr
you're not speeding
2006-09-25 04:54:40 · answer #3 · answered by harmony 7 · 0⤊ 0⤋
100 km/hr are the same as 60 mph. So you will be over the limit if you go faster that 60 mph.
2006-09-25 04:46:58 · answer #4 · answered by beauty_fan 2 · 0⤊ 0⤋
kph mph mph kph
10 6.2 5 8.0
20 12.4 10 16.1
30 18.6 15 24.1
40 24.9 20 32.2
50 31.1 25 40.2
60 37.3 30 48.3
70 43.5 35 56.3
80 49.7 40 64.4
90 55.9 45 72.4
100 62.1 50 80.5
110 68.4 55 88.5
120 74.6 60 96.6
mph kph mph kph
2006-09-25 04:53:38 · answer #5 · answered by dalilvr333 3 · 0⤊ 0⤋
no
2006-09-25 04:51:25 · answer #6 · answered by Anonymous · 0⤊ 0⤋