if there is a ski mountain that is 1100 feet and it took a skier 40 seconds to get down, how many miles per hour was the skier traveling?
2007-02-09 15:10:47 · 5 answers · asked by genius 1 in Education & Reference ➔ Homework Help
First convert the units. Multiply 1100 feet by 1 mile/5280 feet and multiply 40 seconds by 1 minute/60 seconds by 1 hour/60 minutes. Then divide miles by hours.
2007-02-09 15:24:58 · answer #1 · answered by just wants to know 7 · 1⤊ 0⤋
In 40 seconds the skier goes 1100 feet, so how far would the skier go in an hour.
3600 seconds in an hour divide 40 seconds = 90.
1100 feet x 90 = 99,000 - the number of feet the skier would travel in an hour.
This needs to be converted into miles per hour.
Divide 99,000 by 5280 (feet in a mile) = 18.75 mph
2007-02-09 15:16:12 · answer #2 · answered by Trevor 7 · 0⤊ 0⤋
Do the distance(1100 feet) divided by the time(40 sec.).
2007-02-09 15:14:56 · answer #3 · answered by Amy 2 · 0⤊ 0⤋
1 100 feet = 0.208 333 333 mile
40 second = 0.0111111 hour
0.208 333 333 mile/0.0111111 hour = 18.75m/h
have a nice evening
2007-02-09 15:24:50 · answer #4 · answered by goolionov 1 · 0⤊ 0⤋
It says youre genius?
2007-02-09 15:13:31 · answer #5 · answered by Anonymous · 1⤊ 1⤋