It takes about fifteen minutes walk one dog. How many hours does it take to walk 25 dogs separately?
2 answers:
Answer:
6.25 hours
Step-by-step explanation:
If it takes <u>fifteen</u> minutes to walk one dog, then we simply have to multiply 15 by 25. We have 25 dogs separately!
15 minutes *25 dogs= 375 minutes
However, the question asks for hours. We can simply convert 375 minutes into hours, knowing that <u>60 minutes = 1 hour.</u>
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Let's divide!
It would take <u>6.25</u> hours to walk 25 dogs separately.
<em>I hope this helps! Let me know if you have any other questions :)</em>
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Diagonal of a cube D is a hypotenuse of a right triangle which other two legs are face diagonal (f) and length of a side (a):
D² = f² + a²
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f² = 2a²
D² = 2a² + a² = 3a²
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A regular hexahedron is actually a cube.
Diagonal of a cube D is a hypotenuse of a right triangle which other two legs are face diagonal (f) and length of a side (a):
D² = f² + a²
Face diagonal is a hypotenuse of a right triangle which sides are a and a:
f² = a² + a² =2a²
D² = f² + a²
f² = 2a²
D² = 2a² + a² = 3a²
D = √3a² = √3 * √a² = √3 * a = a√3
Volume of a cube with side a is: V = a³
D = a√3
⇒ a = D/√3
V = a³ = (D/√3)³
We have:
D = 8√2 in