Answer:
1.2
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given as :
The distance cover while running =
= 5 miles
Let The speed for running = ![S_1](https://tex.z-dn.net/?f=S_1)
The distance cover with bike =
= 80 miles
The speed for biking =
= 15 mph + ![S_1](https://tex.z-dn.net/?f=S_1)
Total Time taken = 5 hours
Now Time = ![\dfrac{\textrm Distance}{\textrm Speed}](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Ctextrm%20Distance%7D%7B%5Ctextrm%20Speed%7D)
∴ 5 hour =
+ ![\frac{D_2}{S_2}](https://tex.z-dn.net/?f=%5Cfrac%7BD_2%7D%7BS_2%7D)
Or, 5 hour =
+ ![\frac{80}{15+S_1}](https://tex.z-dn.net/?f=%5Cfrac%7B80%7D%7B15%2BS_1%7D)
Or, 5 hour = ![\frac{75 + 5 S_1 + 80 S_1}{S_1(15+S_1)}](https://tex.z-dn.net/?f=%5Cfrac%7B75%20%2B%205%20S_1%20%2B%2080%20S_1%7D%7BS_1%2815%2BS_1%29%7D)
or, 5 × (
) = ![85 S_1 + 75](https://tex.z-dn.net/?f=85%20S_1%20%2B%2075)
Or,
-
= 0
or,
= 0
or,
= 0
Or,
= 0
Or,
= 0
Or,
= 0
∴
= 3 , - 5
So, the running speed = 3 mile per hour
And the biking speed = 15 mph + 3 mph = 18 mile per hour
Hence The running speed of Stu is 3 mile per hour . Answer
Answer:
3.33 and 1/3
Step-by-step explanation:
"Dense" here means that there are infinite irrational numbers between two rational numbers. Also, there are infinite rational numbers between two rational numbers. That's the meaning of dense. Actually, that can be apply to all real numbers, there always is gonna be a number between other two.
But, to demonstrate that irrationals are dense, we have to based on an interval with rational limits, because the theorem about dense sets is about rationals, and the dense irrational set is a deduction from it. That's why the best option is 2, because that's an interval with rational limits.
Answer:
25
Step-by-step explanation:
Number of difference arrangements = 5! = 5 x 4 x 3 x 2 x 1 = 120
Answer: There are 120 different arrangements.