Answer:
D & E
Step-by-step explanation:
150(5)+45h=1155 D
750+45h=1155
45h=405
h=9 E
Answer:
no, the two triangles are not necessarily congruent
Step-by-step explanation:
given: AB=CB, <A=<C
BD=DB cuz' common
so u get two sides and one angle equal, SSA
BUT in order for congruent, it must SAS where the angle is between the two equal sides.
so ABD n CBD are not necessarily congruent but they may be
Answer:
B
Step-by-step explanation:
The mean is calculated as
mean = ![\frac{sum}{count}](https://tex.z-dn.net/?f=%5Cfrac%7Bsum%7D%7Bcount%7D)
= ![\frac{2.5+2.0+4.2+3.0+9.3}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B2.5%2B2.0%2B4.2%2B3.0%2B9.3%7D%7B5%7D)
=
= 4.2 Kg → B
Answer: Devon will complete the entire trip in 3 hours 20 minutes
Explanation:
Since we have given that
Devon drives
the distance to his house in
hours,
Let the distance be x
According to question, we get
![Speed=\frac{Distance}{Time}\\\\Speed=\frac{\frac{3x}{4}}{\frac{5}{2}}\\\\Speed=\frac{6x}{20}=\frac{3x}{10}](https://tex.z-dn.net/?f=Speed%3D%5Cfrac%7BDistance%7D%7BTime%7D%5C%5C%5C%5CSpeed%3D%5Cfrac%7B%5Cfrac%7B3x%7D%7B4%7D%7D%7B%5Cfrac%7B5%7D%7B2%7D%7D%5C%5C%5C%5CSpeed%3D%5Cfrac%7B6x%7D%7B20%7D%3D%5Cfrac%7B3x%7D%7B10%7D)
Now, if he want to travel the entire trip ,
Time taken by Devon is given by
![Time=\frac{Distance}{Speed}\\\\Time=\frac{x}{\frac{3x}{10}}\\\\Time=\frac{10}{3}\\\\Time=3\frac{1}{3}\times 60\\\\Time=3\ hours\ 20\ minutes](https://tex.z-dn.net/?f=Time%3D%5Cfrac%7BDistance%7D%7BSpeed%7D%5C%5C%5C%5CTime%3D%5Cfrac%7Bx%7D%7B%5Cfrac%7B3x%7D%7B10%7D%7D%5C%5C%5C%5CTime%3D%5Cfrac%7B10%7D%7B3%7D%5C%5C%5C%5CTime%3D3%5Cfrac%7B1%7D%7B3%7D%5Ctimes%2060%5C%5C%5C%5CTime%3D3%5C%20hours%5C%2020%5C%20minutes)
Hence, Devon will complete the entire trip in 3 hours 20 minutes.