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Answer:
Speed of first skier = 5 km/h
Speed of second skier = 10 km/h
Step-by-step explanation:
Given:
Distance between skiers = 30 km
Time after which they meet = 2 hours
Second skier is 5 km/h faster than the first skier.
To find speed of each skier.
Solution:
Let the speed of first skier be in km/h =
<em>Distance covered in km 2 hours will be = </em>
Speed of second skier in km/h can be given as =
<em>Distance traveled by second skier after 2 hours will be = [Using distribution]</em>
Since, the skiers were 30 km apart initially, so the total distance covered by both of them when they meet after 2 hours will be = 30 km
Thus, we have:
Solving for
Subtracting both sides by 10.
Dividing both sides by 4.
Speed of first skier = 5 km/h
Speed of second skier = = 10 km/h
Answer: see below
<u>Step-by-step explanation:</u>
To find the frequency, simply count the number of leaves
Brisbane:
Stem Leaf Frequency
0 0
1 0
2 8,6,5 3
3 5 1
4 8,8,4,2 4
5 9,2,0,0 4
6 7,6,2,2,1,1 6
7 6,2,2,1,1,1,0,0 8
8 9,9,9,8,2 5
Brisbane Graph:
Parth:
Stem Leaf Frequency
0 0,0,1,1,2,2 6
1 0,2,4,5 4
2 0,7,8,9 4
3 0,1,4,6 4
4 1,2,5,5,9 5
5 1,3,3,6,7 5
6 0,1,2 3
7 0
8 0
Parth Graph: