The diameter of the sun is about 1.4x10^6 km. The diameter of the planet Mercury is about 5000 km. What is the approximate ratio
2 answers:
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Answer:
The Probability found is:
P =
Step-by-step explanation:
Let x be the 10 cents coin.
Let y be the 25 cents coin.
We have to find all the possible outcomes
1) First coin = 10 cents, Second coin = 10 cents , so
(x,x) = 20
2) First coin = 10 cents, Second coin = 25 cents , so
(x,y) = 35
3) First coin = 25 cents, Second coin = 10 cents , so
(y,x) = 35
4) First coin = 25 cents, Second coin = 25 cents , so
(y,y) = 50
Find the probability of each outcome:
P(x,x) =
P(x,y) =
P(y,x) =
P(y,y) =
Add all the probabilities where sum is at least 35 i.e P(x,y) , P(y,x) , P(y,y)
P(x,y) + P(y,x) + P(y,y) =
Answer:
The length of the loop is approximately 49.58 km.
Step-by-step explanation:
Given:
Time required to ride bicycle in loop = 2 hours and 30 mins
Now we know that;
60 mins = 1 hour
30 mins =0.5 hour
so 2 hour and 30 mins =
∴ Time required to ride bicycle in loop = 2.5 hrs
Let the speed at which she is riding the bicycle be 's'.
and let Total distance of the loop be 'd'
Now we know that;
Distance is given by speed multiplied by time.
framing in equation form we get;
Now Given:
If she increase the speed by 1 km/hr, it would reduce her time around the loop by 7 minutes.
Hence we can say;
Speed =
Also time will be reduce to 7 mins.
7 mins =0.12 hrs
Now time = 2.5-0.12 =2.38
Again Distance is given by speed multiplied by time.
framing in equation form we get;
Now distance is same for both so we will calculate the speed by equating the equations.
Now Speed = 19.83 km/hr
Length of the loop (d) =
Hence the length of the loop is approximately 49.58 km.